Commit | Line | Data |
---|---|---|
e98a2d6e | 1 | /* |
d6e69534 | 2 | * Babeltrace - CTF message iterator |
06a626b8 | 3 | * |
44c440bc PP |
4 | * Copyright (c) 2015-2018 EfficiOS Inc. and Linux Foundation |
5 | * Copyright (c) 2015-2018 Philippe Proulx <pproulx@efficios.com> | |
e98a2d6e PP |
6 | * |
7 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
8 | * of this software and associated documentation files (the "Software"), to deal | |
9 | * in the Software without restriction, including without limitation the rights | |
10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
11 | * copies of the Software, and to permit persons to whom the Software is | |
12 | * furnished to do so, subject to the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice shall be included in | |
15 | * all copies or substantial portions of the Software. | |
16 | * | |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
20 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
23 | * SOFTWARE. | |
24 | */ | |
25 | ||
eb7f6c4f | 26 | #define BT_COMP_LOG_SELF_COMP (notit->self_comp) |
ea14c7dd | 27 | #define BT_LOG_OUTPUT_LEVEL (notit->log_level) |
350ad6c1 | 28 | #define BT_LOG_TAG "PLUGIN/CTF/MSG-ITER" |
eb7f6c4f | 29 | #include "plugins/comp-logging.h" |
fdf0e7a0 | 30 | |
e98a2d6e PP |
31 | #include <stdint.h> |
32 | #include <inttypes.h> | |
33 | #include <stdio.h> | |
34 | #include <stddef.h> | |
35 | #include <stdbool.h> | |
578e048b | 36 | #include "common/assert.h" |
e98a2d6e | 37 | #include <string.h> |
3fadfbc0 | 38 | #include <babeltrace2/babeltrace.h> |
578e048b | 39 | #include "common/common.h" |
e98a2d6e | 40 | #include <glib.h> |
0fbb9a9f | 41 | #include <stdlib.h> |
e98a2d6e | 42 | |
d6e69534 | 43 | #include "msg-iter.h" |
5cd6d0e5 | 44 | #include "../bfcr/bfcr.h" |
e98a2d6e | 45 | |
d6e69534 | 46 | struct bt_msg_iter; |
e98a2d6e PP |
47 | |
48 | /* A visit stack entry */ | |
49 | struct stack_entry { | |
50 | /* | |
51 | * Current base field, one of: | |
52 | * | |
53 | * * string | |
54 | * * structure | |
55 | * * array | |
56 | * * sequence | |
57 | * * variant | |
58 | * | |
312c056a | 59 | * Field is borrowed. |
e98a2d6e | 60 | */ |
b19ff26f | 61 | bt_field *base; |
e98a2d6e | 62 | |
44c440bc | 63 | /* Index of next field to set */ |
e98a2d6e PP |
64 | size_t index; |
65 | }; | |
66 | ||
ea14c7dd PP |
67 | struct bt_msg_iter; |
68 | ||
e98a2d6e PP |
69 | /* Visit stack */ |
70 | struct stack { | |
ea14c7dd PP |
71 | struct bt_msg_iter *notit; |
72 | ||
afe86a06 PP |
73 | /* Entries (struct stack_entry) */ |
74 | GArray *entries; | |
75 | ||
76 | /* Number of active entries */ | |
77 | size_t size; | |
e98a2d6e PP |
78 | }; |
79 | ||
80 | /* State */ | |
81 | enum state { | |
82 | STATE_INIT, | |
83 | STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN, | |
84 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, | |
85 | STATE_AFTER_TRACE_PACKET_HEADER, | |
86 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN, | |
87 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
88 | STATE_AFTER_STREAM_PACKET_CONTEXT, | |
495490c5 | 89 | STATE_CHECK_EMIT_MSG_STREAM_BEGINNING, |
fc917f65 | 90 | STATE_EMIT_MSG_STREAM_BEGINNING, |
495490c5 PP |
91 | STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS, |
92 | STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS, | |
93 | STATE_EMIT_MSG_DISCARDED_EVENTS, | |
94 | STATE_EMIT_MSG_DISCARDED_PACKETS, | |
fc917f65 | 95 | STATE_EMIT_MSG_PACKET_BEGINNING, |
44c440bc PP |
96 | STATE_DSCOPE_EVENT_HEADER_BEGIN, |
97 | STATE_DSCOPE_EVENT_HEADER_CONTINUE, | |
98 | STATE_AFTER_EVENT_HEADER, | |
99 | STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN, | |
100 | STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE, | |
101 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN, | |
102 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE, | |
e98a2d6e PP |
103 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, |
104 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, | |
d6e69534 | 105 | STATE_EMIT_MSG_EVENT, |
e98a2d6e | 106 | STATE_SKIP_PACKET_PADDING, |
fc917f65 PP |
107 | STATE_EMIT_MSG_PACKET_END_MULTI, |
108 | STATE_EMIT_MSG_PACKET_END_SINGLE, | |
188edac1 | 109 | STATE_CHECK_EMIT_MSG_STREAM_END, |
fc917f65 PP |
110 | STATE_EMIT_MSG_STREAM_END, |
111 | STATE_DONE, | |
e98a2d6e PP |
112 | }; |
113 | ||
495490c5 PP |
114 | struct end_of_packet_snapshots { |
115 | uint64_t discarded_events; | |
116 | uint64_t packets; | |
117 | uint64_t beginning_clock; | |
118 | uint64_t end_clock; | |
119 | }; | |
120 | ||
d6e69534 PP |
121 | /* CTF message iterator */ |
122 | struct bt_msg_iter { | |
e98a2d6e PP |
123 | /* Visit stack */ |
124 | struct stack *stack; | |
125 | ||
d6e69534 PP |
126 | /* Current message iterator to create messages (weak) */ |
127 | bt_self_message_iterator *msg_iter; | |
5c563278 | 128 | |
188edac1 | 129 | /* True to emit a stream beginning message. */ |
fc917f65 PP |
130 | bool emit_stream_begin_msg; |
131 | ||
188edac1 | 132 | /* True to emit a stream end message. */ |
fc917f65 PP |
133 | bool emit_stream_end_msg; |
134 | ||
495490c5 PP |
135 | /* True to set the stream */ |
136 | bool set_stream; | |
137 | ||
e98a2d6e PP |
138 | /* |
139 | * Current dynamic scope field pointer. | |
140 | * | |
312c056a PP |
141 | * This is set by read_dscope_begin_state() and contains the |
142 | * value of one of the pointers in `dscopes` below. | |
e98a2d6e | 143 | */ |
b19ff26f | 144 | bt_field *cur_dscope_field; |
e98a2d6e | 145 | |
44c440bc PP |
146 | /* |
147 | * True if we're done filling a string field from a text | |
148 | * array/sequence payload. | |
149 | */ | |
150 | bool done_filling_string; | |
151 | ||
152 | /* Trace and classes */ | |
41693723 PP |
153 | /* True to set IR fields */ |
154 | bool set_ir_fields; | |
155 | ||
e98a2d6e | 156 | struct { |
44c440bc PP |
157 | struct ctf_trace_class *tc; |
158 | struct ctf_stream_class *sc; | |
159 | struct ctf_event_class *ec; | |
e98a2d6e PP |
160 | } meta; |
161 | ||
83ebb7f1 | 162 | /* Current packet context field wrapper (NULL if not created yet) */ |
b19ff26f | 163 | bt_packet_context_field *packet_context_field; |
312c056a | 164 | |
e98a2d6e | 165 | /* Current packet (NULL if not created yet) */ |
b19ff26f | 166 | bt_packet *packet; |
e98a2d6e | 167 | |
af87daef | 168 | /* Current stream (NULL if not set yet) */ |
b19ff26f | 169 | bt_stream *stream; |
af87daef | 170 | |
312c056a | 171 | /* Current event (NULL if not created yet) */ |
b19ff26f | 172 | bt_event *event; |
312c056a | 173 | |
d6e69534 PP |
174 | /* Current event message (NULL if not created yet) */ |
175 | bt_message *event_msg; | |
312c056a | 176 | |
44c440bc | 177 | /* Database of current dynamic scopes */ |
e98a2d6e | 178 | struct { |
b19ff26f | 179 | bt_field *stream_packet_context; |
b19ff26f PP |
180 | bt_field *event_common_context; |
181 | bt_field *event_spec_context; | |
182 | bt_field *event_payload; | |
e98a2d6e PP |
183 | } dscopes; |
184 | ||
185 | /* Current state */ | |
186 | enum state state; | |
187 | ||
2cf1d51e | 188 | /* Current medium buffer data */ |
e98a2d6e PP |
189 | struct { |
190 | /* Last address provided by medium */ | |
191 | const uint8_t *addr; | |
192 | ||
193 | /* Buffer size provided by medium (bytes) */ | |
194 | size_t sz; | |
195 | ||
196 | /* Offset within whole packet of addr (bits) */ | |
197 | size_t packet_offset; | |
198 | ||
199 | /* Current position from addr (bits) */ | |
200 | size_t at; | |
174e773b PP |
201 | |
202 | /* Position of the last event header from addr (bits) */ | |
203 | size_t last_eh_at; | |
e98a2d6e PP |
204 | } buf; |
205 | ||
206 | /* Binary type reader */ | |
5cd6d0e5 | 207 | struct bt_bfcr *bfcr; |
e98a2d6e | 208 | |
2cf1d51e | 209 | /* Current medium data */ |
e98a2d6e | 210 | struct { |
d6e69534 | 211 | struct bt_msg_iter_medium_ops medops; |
e98a2d6e PP |
212 | size_t max_request_sz; |
213 | void *data; | |
214 | } medium; | |
215 | ||
216 | /* Current packet size (bits) (-1 if unknown) */ | |
44c440bc | 217 | int64_t cur_exp_packet_total_size; |
e98a2d6e PP |
218 | |
219 | /* Current content size (bits) (-1 if unknown) */ | |
44c440bc | 220 | int64_t cur_exp_packet_content_size; |
c44c3e70 | 221 | |
44c440bc PP |
222 | /* Current stream class ID */ |
223 | int64_t cur_stream_class_id; | |
9e0c8dbb | 224 | |
44c440bc PP |
225 | /* Current event class ID */ |
226 | int64_t cur_event_class_id; | |
5f870343 | 227 | |
44c440bc PP |
228 | /* Current data stream ID */ |
229 | int64_t cur_data_stream_id; | |
5f870343 JG |
230 | |
231 | /* | |
44c440bc PP |
232 | * Offset, in the underlying media, of the current packet's |
233 | * start (-1 if unknown). | |
5f870343 | 234 | */ |
44c440bc PP |
235 | off_t cur_packet_offset; |
236 | ||
237 | /* Default clock's current value */ | |
605e1019 | 238 | uint64_t default_clock_snapshot; |
5f870343 | 239 | |
495490c5 PP |
240 | /* End of current packet snapshots */ |
241 | struct end_of_packet_snapshots snapshots; | |
242 | ||
243 | /* End of previous packet snapshots */ | |
244 | struct end_of_packet_snapshots prev_packet_snapshots; | |
44c440bc PP |
245 | |
246 | /* Stored values (for sequence lengths, variant tags) */ | |
247 | GArray *stored_values; | |
ea14c7dd PP |
248 | |
249 | /* Iterator's current log level */ | |
250 | bt_logging_level log_level; | |
eb7f6c4f PP |
251 | |
252 | /* Iterator's owning self component, or `NULL` if none (query) */ | |
253 | bt_self_component *self_comp; | |
e98a2d6e PP |
254 | }; |
255 | ||
fdf0e7a0 PP |
256 | static inline |
257 | const char *state_string(enum state state) | |
258 | { | |
259 | switch (state) { | |
260 | case STATE_INIT: | |
8a432889 | 261 | return "INIT"; |
fdf0e7a0 | 262 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: |
8a432889 | 263 | return "DSCOPE_TRACE_PACKET_HEADER_BEGIN"; |
fdf0e7a0 | 264 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: |
8a432889 | 265 | return "DSCOPE_TRACE_PACKET_HEADER_CONTINUE"; |
fdf0e7a0 | 266 | case STATE_AFTER_TRACE_PACKET_HEADER: |
8a432889 | 267 | return "AFTER_TRACE_PACKET_HEADER"; |
fdf0e7a0 | 268 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: |
8a432889 | 269 | return "DSCOPE_STREAM_PACKET_CONTEXT_BEGIN"; |
fdf0e7a0 | 270 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: |
8a432889 | 271 | return "DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE"; |
fdf0e7a0 | 272 | case STATE_AFTER_STREAM_PACKET_CONTEXT: |
8a432889 | 273 | return "AFTER_STREAM_PACKET_CONTEXT"; |
fc917f65 | 274 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
8a432889 | 275 | return "EMIT_MSG_STREAM_BEGINNING"; |
fc917f65 | 276 | case STATE_EMIT_MSG_PACKET_BEGINNING: |
8a432889 | 277 | return "EMIT_MSG_PACKET_BEGINNING"; |
495490c5 | 278 | case STATE_EMIT_MSG_DISCARDED_EVENTS: |
8a432889 | 279 | return "EMIT_MSG_DISCARDED_EVENTS"; |
495490c5 | 280 | case STATE_EMIT_MSG_DISCARDED_PACKETS: |
8a432889 | 281 | return "EMIT_MSG_DISCARDED_PACKETS"; |
44c440bc | 282 | case STATE_DSCOPE_EVENT_HEADER_BEGIN: |
8a432889 | 283 | return "DSCOPE_EVENT_HEADER_BEGIN"; |
44c440bc | 284 | case STATE_DSCOPE_EVENT_HEADER_CONTINUE: |
8a432889 | 285 | return "DSCOPE_EVENT_HEADER_CONTINUE"; |
44c440bc | 286 | case STATE_AFTER_EVENT_HEADER: |
8a432889 | 287 | return "AFTER_EVENT_HEADER"; |
44c440bc | 288 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN: |
8a432889 | 289 | return "DSCOPE_EVENT_COMMON_CONTEXT_BEGIN"; |
44c440bc | 290 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE: |
8a432889 | 291 | return "DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE"; |
44c440bc | 292 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN: |
8a432889 | 293 | return "DSCOPE_EVENT_SPEC_CONTEXT_BEGIN"; |
44c440bc | 294 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE: |
8a432889 | 295 | return "DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE"; |
fdf0e7a0 | 296 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: |
8a432889 | 297 | return "DSCOPE_EVENT_PAYLOAD_BEGIN"; |
fdf0e7a0 | 298 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: |
8a432889 | 299 | return "DSCOPE_EVENT_PAYLOAD_CONTINUE"; |
d6e69534 | 300 | case STATE_EMIT_MSG_EVENT: |
8a432889 | 301 | return "EMIT_MSG_EVENT"; |
fdf0e7a0 | 302 | case STATE_SKIP_PACKET_PADDING: |
8a432889 | 303 | return "SKIP_PACKET_PADDING"; |
fc917f65 | 304 | case STATE_EMIT_MSG_PACKET_END_MULTI: |
8a432889 | 305 | return "EMIT_MSG_PACKET_END_MULTI"; |
fc917f65 | 306 | case STATE_EMIT_MSG_PACKET_END_SINGLE: |
8a432889 | 307 | return "EMIT_MSG_PACKET_END_SINGLE"; |
fc917f65 | 308 | case STATE_EMIT_MSG_STREAM_END: |
8a432889 | 309 | return "EMIT_MSG_STREAM_END"; |
fc917f65 | 310 | case STATE_DONE: |
8a432889 | 311 | return "DONE"; |
fdf0e7a0 PP |
312 | default: |
313 | return "(unknown)"; | |
314 | } | |
315 | } | |
316 | ||
2cf1d51e | 317 | static |
d6e69534 | 318 | int bt_msg_iter_switch_packet(struct bt_msg_iter *notit); |
2cf1d51e | 319 | |
e98a2d6e | 320 | static |
d6e69534 | 321 | struct stack *stack_new(struct bt_msg_iter *notit) |
e98a2d6e PP |
322 | { |
323 | struct stack *stack = NULL; | |
324 | ||
325 | stack = g_new0(struct stack, 1); | |
326 | if (!stack) { | |
eb7f6c4f | 327 | BT_COMP_LOGE_STR("Failed to allocate one stack."); |
e98a2d6e PP |
328 | goto error; |
329 | } | |
330 | ||
ea14c7dd | 331 | stack->notit = notit; |
afe86a06 | 332 | stack->entries = g_array_new(FALSE, TRUE, sizeof(struct stack_entry)); |
e98a2d6e | 333 | if (!stack->entries) { |
eb7f6c4f | 334 | BT_COMP_LOGE_STR("Failed to allocate a GArray."); |
e98a2d6e PP |
335 | goto error; |
336 | } | |
337 | ||
eb7f6c4f | 338 | BT_COMP_LOGD("Created stack: notit-addr=%p, stack-addr=%p", notit, stack); |
44c440bc | 339 | goto end; |
fdf0e7a0 | 340 | |
e98a2d6e PP |
341 | error: |
342 | g_free(stack); | |
44c440bc PP |
343 | stack = NULL; |
344 | ||
345 | end: | |
346 | return stack; | |
e98a2d6e PP |
347 | } |
348 | ||
349 | static | |
350 | void stack_destroy(struct stack *stack) | |
351 | { | |
ea14c7dd PP |
352 | struct bt_msg_iter *notit; |
353 | ||
f6ccaed9 | 354 | BT_ASSERT(stack); |
ea14c7dd | 355 | notit = stack->notit; |
eb7f6c4f | 356 | BT_COMP_LOGD("Destroying stack: addr=%p", stack); |
afe86a06 PP |
357 | |
358 | if (stack->entries) { | |
359 | g_array_free(stack->entries, TRUE); | |
360 | } | |
361 | ||
e98a2d6e PP |
362 | g_free(stack); |
363 | } | |
364 | ||
365 | static | |
b19ff26f | 366 | void stack_push(struct stack *stack, bt_field *base) |
e98a2d6e | 367 | { |
e98a2d6e | 368 | struct stack_entry *entry; |
ea14c7dd | 369 | struct bt_msg_iter *notit; |
e98a2d6e | 370 | |
f6ccaed9 | 371 | BT_ASSERT(stack); |
ea14c7dd | 372 | notit = stack->notit; |
f6ccaed9 | 373 | BT_ASSERT(base); |
ef267d12 | 374 | BT_COMP_LOGT("Pushing base field on stack: stack-addr=%p, " |
afe86a06 PP |
375 | "stack-size-before=%zu, stack-size-after=%zu", |
376 | stack, stack->size, stack->size + 1); | |
377 | ||
378 | if (stack->entries->len == stack->size) { | |
379 | g_array_set_size(stack->entries, stack->size + 1); | |
e98a2d6e PP |
380 | } |
381 | ||
afe86a06 | 382 | entry = &g_array_index(stack->entries, struct stack_entry, stack->size); |
312c056a | 383 | entry->base = base; |
afe86a06 PP |
384 | entry->index = 0; |
385 | stack->size++; | |
e98a2d6e PP |
386 | } |
387 | ||
388 | static inline | |
389 | unsigned int stack_size(struct stack *stack) | |
390 | { | |
f6ccaed9 | 391 | BT_ASSERT(stack); |
afe86a06 | 392 | return stack->size; |
e98a2d6e PP |
393 | } |
394 | ||
395 | static | |
396 | void stack_pop(struct stack *stack) | |
397 | { | |
ea14c7dd PP |
398 | struct bt_msg_iter *notit; |
399 | ||
f6ccaed9 PP |
400 | BT_ASSERT(stack); |
401 | BT_ASSERT(stack_size(stack)); | |
ea14c7dd | 402 | notit = stack->notit; |
ef267d12 | 403 | BT_COMP_LOGT("Popping from stack: " |
afe86a06 PP |
404 | "stack-addr=%p, stack-size-before=%zu, stack-size-after=%zu", |
405 | stack, stack->size, stack->size - 1); | |
406 | stack->size--; | |
e98a2d6e PP |
407 | } |
408 | ||
409 | static inline | |
410 | struct stack_entry *stack_top(struct stack *stack) | |
411 | { | |
f6ccaed9 PP |
412 | BT_ASSERT(stack); |
413 | BT_ASSERT(stack_size(stack)); | |
afe86a06 PP |
414 | return &g_array_index(stack->entries, struct stack_entry, |
415 | stack->size - 1); | |
e98a2d6e PP |
416 | } |
417 | ||
418 | static inline | |
419 | bool stack_empty(struct stack *stack) | |
420 | { | |
421 | return stack_size(stack) == 0; | |
422 | } | |
423 | ||
424 | static | |
425 | void stack_clear(struct stack *stack) | |
426 | { | |
f6ccaed9 | 427 | BT_ASSERT(stack); |
afe86a06 | 428 | stack->size = 0; |
e98a2d6e PP |
429 | } |
430 | ||
431 | static inline | |
d6e69534 PP |
432 | enum bt_msg_iter_status msg_iter_status_from_m_status( |
433 | enum bt_msg_iter_medium_status m_status) | |
e98a2d6e | 434 | { |
44c440bc | 435 | /* They are the same */ |
dc77b521 | 436 | return (int) m_status; |
e98a2d6e PP |
437 | } |
438 | ||
439 | static inline | |
d6e69534 | 440 | size_t buf_size_bits(struct bt_msg_iter *notit) |
e98a2d6e | 441 | { |
fdf0e7a0 | 442 | return notit->buf.sz * 8; |
e98a2d6e PP |
443 | } |
444 | ||
445 | static inline | |
d6e69534 | 446 | size_t buf_available_bits(struct bt_msg_iter *notit) |
e98a2d6e PP |
447 | { |
448 | return buf_size_bits(notit) - notit->buf.at; | |
449 | } | |
450 | ||
451 | static inline | |
d6e69534 | 452 | size_t packet_at(struct bt_msg_iter *notit) |
e98a2d6e PP |
453 | { |
454 | return notit->buf.packet_offset + notit->buf.at; | |
455 | } | |
456 | ||
e98a2d6e | 457 | static inline |
d6e69534 | 458 | void buf_consume_bits(struct bt_msg_iter *notit, size_t incr) |
e98a2d6e | 459 | { |
ef267d12 | 460 | BT_COMP_LOGT("Advancing cursor: notit-addr=%p, cur-before=%zu, cur-after=%zu", |
fdf0e7a0 | 461 | notit, notit->buf.at, notit->buf.at + incr); |
e98a2d6e PP |
462 | notit->buf.at += incr; |
463 | } | |
464 | ||
e98a2d6e | 465 | static |
d6e69534 PP |
466 | enum bt_msg_iter_status request_medium_bytes( |
467 | struct bt_msg_iter *notit) | |
e98a2d6e | 468 | { |
fdf0e7a0 PP |
469 | uint8_t *buffer_addr = NULL; |
470 | size_t buffer_sz = 0; | |
d6e69534 | 471 | enum bt_msg_iter_medium_status m_status; |
e98a2d6e | 472 | |
eb7f6c4f | 473 | BT_COMP_LOGD("Calling user function (request bytes): notit-addr=%p, " |
fdf0e7a0 | 474 | "request-size=%zu", notit, notit->medium.max_request_sz); |
e98a2d6e PP |
475 | m_status = notit->medium.medops.request_bytes( |
476 | notit->medium.max_request_sz, &buffer_addr, | |
477 | &buffer_sz, notit->medium.data); | |
eb7f6c4f | 478 | BT_COMP_LOGD("User function returned: status=%s, buf-addr=%p, buf-size=%zu", |
d6e69534 | 479 | bt_msg_iter_medium_status_string(m_status), |
fdf0e7a0 | 480 | buffer_addr, buffer_sz); |
d6e69534 | 481 | if (m_status == BT_MSG_ITER_MEDIUM_STATUS_OK) { |
f6ccaed9 | 482 | BT_ASSERT(buffer_sz != 0); |
e98a2d6e PP |
483 | |
484 | /* New packet offset is old one + old size (in bits) */ | |
485 | notit->buf.packet_offset += buf_size_bits(notit); | |
486 | ||
487 | /* Restart at the beginning of the new medium buffer */ | |
488 | notit->buf.at = 0; | |
2b186c3e | 489 | notit->buf.last_eh_at = SIZE_MAX; |
e98a2d6e PP |
490 | |
491 | /* New medium buffer size */ | |
492 | notit->buf.sz = buffer_sz; | |
493 | ||
494 | /* New medium buffer address */ | |
495 | notit->buf.addr = buffer_addr; | |
fdf0e7a0 | 496 | |
eb7f6c4f | 497 | BT_COMP_LOGD("User function returned new bytes: " |
fdf0e7a0 PP |
498 | "packet-offset=%zu, cur=%zu, size=%zu, addr=%p", |
499 | notit->buf.packet_offset, notit->buf.at, | |
500 | notit->buf.sz, notit->buf.addr); | |
eb7f6c4f | 501 | BT_COMP_LOGD_MEM(buffer_addr, buffer_sz, "Returned bytes at %p:", |
fdf0e7a0 | 502 | buffer_addr); |
d6e69534 | 503 | } else if (m_status == BT_MSG_ITER_MEDIUM_STATUS_EOF) { |
0684124b PP |
504 | /* |
505 | * User returned end of stream: validate that we're not | |
506 | * in the middle of a packet header, packet context, or | |
507 | * event. | |
508 | */ | |
44c440bc PP |
509 | if (notit->cur_exp_packet_total_size >= 0) { |
510 | if (packet_at(notit) == | |
511 | notit->cur_exp_packet_total_size) { | |
df0139b8 | 512 | goto end; |
0684124b | 513 | } |
df0139b8 PP |
514 | } else { |
515 | if (packet_at(notit) == 0) { | |
516 | goto end; | |
0684124b | 517 | } |
0684124b | 518 | |
df0139b8 PP |
519 | if (notit->buf.last_eh_at != SIZE_MAX && |
520 | notit->buf.at == notit->buf.last_eh_at) { | |
521 | goto end; | |
0684124b PP |
522 | } |
523 | } | |
524 | ||
0684124b | 525 | /* All other states are invalid */ |
eb7f6c4f | 526 | BT_COMP_LOGW("User function returned %s, but message iterator is in an unexpected state: " |
df0139b8 PP |
527 | "state=%s, cur-packet-size=%" PRId64 ", cur=%zu, " |
528 | "packet-cur=%zu, last-eh-at=%zu", | |
d6e69534 | 529 | bt_msg_iter_medium_status_string(m_status), |
df0139b8 | 530 | state_string(notit->state), |
44c440bc | 531 | notit->cur_exp_packet_total_size, |
df0139b8 PP |
532 | notit->buf.at, packet_at(notit), |
533 | notit->buf.last_eh_at); | |
d6e69534 | 534 | m_status = BT_MSG_ITER_MEDIUM_STATUS_ERROR; |
fdf0e7a0 | 535 | } else if (m_status < 0) { |
eb7f6c4f | 536 | BT_COMP_LOGW("User function failed: status=%s", |
d6e69534 | 537 | bt_msg_iter_medium_status_string(m_status)); |
e98a2d6e PP |
538 | } |
539 | ||
df0139b8 | 540 | end: |
d6e69534 | 541 | return msg_iter_status_from_m_status(m_status); |
e98a2d6e PP |
542 | } |
543 | ||
544 | static inline | |
d6e69534 PP |
545 | enum bt_msg_iter_status buf_ensure_available_bits( |
546 | struct bt_msg_iter *notit) | |
e98a2d6e | 547 | { |
d6e69534 | 548 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
e98a2d6e | 549 | |
91d81473 | 550 | if (G_UNLIKELY(buf_available_bits(notit) == 0)) { |
e98a2d6e | 551 | /* |
d6e69534 | 552 | * This _cannot_ return BT_MSG_ITER_STATUS_OK |
e98a2d6e PP |
553 | * _and_ no bits. |
554 | */ | |
555 | status = request_medium_bytes(notit); | |
556 | } | |
557 | ||
558 | return status; | |
559 | } | |
560 | ||
561 | static | |
d6e69534 PP |
562 | enum bt_msg_iter_status read_dscope_begin_state( |
563 | struct bt_msg_iter *notit, | |
5cd6d0e5 | 564 | struct ctf_field_class *dscope_fc, |
e98a2d6e | 565 | enum state done_state, enum state continue_state, |
b19ff26f | 566 | bt_field *dscope_field) |
e98a2d6e | 567 | { |
d6e69534 | 568 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 569 | enum bt_bfcr_status bfcr_status; |
e98a2d6e PP |
570 | size_t consumed_bits; |
571 | ||
e98a2d6e | 572 | notit->cur_dscope_field = dscope_field; |
ef267d12 | 573 | BT_COMP_LOGT("Starting BFCR: notit-addr=%p, bfcr-addr=%p, fc-addr=%p", |
5cd6d0e5 PP |
574 | notit, notit->bfcr, dscope_fc); |
575 | consumed_bits = bt_bfcr_start(notit->bfcr, dscope_fc, | |
e98a2d6e | 576 | notit->buf.addr, notit->buf.at, packet_at(notit), |
5cd6d0e5 | 577 | notit->buf.sz, &bfcr_status); |
ef267d12 | 578 | BT_COMP_LOGT("BFCR consumed bits: size=%zu", consumed_bits); |
e98a2d6e | 579 | |
5cd6d0e5 PP |
580 | switch (bfcr_status) { |
581 | case BT_BFCR_STATUS_OK: | |
582 | /* Field class was read completely */ | |
ef267d12 | 583 | BT_COMP_LOGT_STR("Field was completely decoded."); |
e98a2d6e PP |
584 | notit->state = done_state; |
585 | break; | |
5cd6d0e5 | 586 | case BT_BFCR_STATUS_EOF: |
ef267d12 | 587 | BT_COMP_LOGT_STR("BFCR needs more data to decode field completely."); |
e98a2d6e PP |
588 | notit->state = continue_state; |
589 | break; | |
590 | default: | |
eb7f6c4f | 591 | BT_COMP_LOGW("BFCR failed to start: notit-addr=%p, bfcr-addr=%p, " |
5cd6d0e5 PP |
592 | "status=%s", notit, notit->bfcr, |
593 | bt_bfcr_status_string(bfcr_status)); | |
d6e69534 | 594 | status = BT_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
595 | goto end; |
596 | } | |
597 | ||
598 | /* Consume bits now since we know we're not in an error state */ | |
599 | buf_consume_bits(notit, consumed_bits); | |
600 | ||
601 | end: | |
602 | return status; | |
603 | } | |
604 | ||
605 | static | |
d6e69534 PP |
606 | enum bt_msg_iter_status read_dscope_continue_state( |
607 | struct bt_msg_iter *notit, enum state done_state) | |
e98a2d6e | 608 | { |
d6e69534 | 609 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 610 | enum bt_bfcr_status bfcr_status; |
e98a2d6e PP |
611 | size_t consumed_bits; |
612 | ||
ef267d12 | 613 | BT_COMP_LOGT("Continuing BFCR: notit-addr=%p, bfcr-addr=%p", |
5cd6d0e5 | 614 | notit, notit->bfcr); |
df0139b8 | 615 | |
e98a2d6e | 616 | status = buf_ensure_available_bits(notit); |
d6e69534 | 617 | if (status != BT_MSG_ITER_STATUS_OK) { |
fdf0e7a0 | 618 | if (status < 0) { |
eb7f6c4f | 619 | BT_COMP_LOGW("Cannot ensure that buffer has at least one byte: " |
d6e69534 PP |
620 | "msg-addr=%p, status=%s", |
621 | notit, bt_msg_iter_status_string(status)); | |
fdf0e7a0 | 622 | } else { |
ef267d12 | 623 | BT_COMP_LOGT("Cannot ensure that buffer has at least one byte: " |
d6e69534 PP |
624 | "msg-addr=%p, status=%s", |
625 | notit, bt_msg_iter_status_string(status)); | |
fdf0e7a0 PP |
626 | } |
627 | ||
e98a2d6e PP |
628 | goto end; |
629 | } | |
630 | ||
5cd6d0e5 PP |
631 | consumed_bits = bt_bfcr_continue(notit->bfcr, notit->buf.addr, |
632 | notit->buf.sz, &bfcr_status); | |
ef267d12 | 633 | BT_COMP_LOGT("BFCR consumed bits: size=%zu", consumed_bits); |
e98a2d6e | 634 | |
5cd6d0e5 PP |
635 | switch (bfcr_status) { |
636 | case BT_BFCR_STATUS_OK: | |
78586d8a | 637 | /* Type was read completely. */ |
ef267d12 | 638 | BT_COMP_LOGT_STR("Field was completely decoded."); |
e98a2d6e PP |
639 | notit->state = done_state; |
640 | break; | |
5cd6d0e5 | 641 | case BT_BFCR_STATUS_EOF: |
78586d8a | 642 | /* Stay in this continue state. */ |
ef267d12 | 643 | BT_COMP_LOGT_STR("BFCR needs more data to decode field completely."); |
e98a2d6e PP |
644 | break; |
645 | default: | |
eb7f6c4f | 646 | BT_COMP_LOGW("BFCR failed to continue: notit-addr=%p, bfcr-addr=%p, " |
5cd6d0e5 PP |
647 | "status=%s", notit, notit->bfcr, |
648 | bt_bfcr_status_string(bfcr_status)); | |
d6e69534 | 649 | status = BT_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
650 | goto end; |
651 | } | |
652 | ||
78586d8a | 653 | /* Consume bits now since we know we're not in an error state. */ |
e98a2d6e | 654 | buf_consume_bits(notit, consumed_bits); |
e98a2d6e PP |
655 | end: |
656 | return status; | |
657 | } | |
658 | ||
659 | static | |
d6e69534 | 660 | void release_event_dscopes(struct bt_msg_iter *notit) |
e98a2d6e | 661 | { |
44c440bc PP |
662 | notit->dscopes.event_common_context = NULL; |
663 | notit->dscopes.event_spec_context = NULL; | |
312c056a | 664 | notit->dscopes.event_payload = NULL; |
e98a2d6e PP |
665 | } |
666 | ||
667 | static | |
d6e69534 | 668 | void release_all_dscopes(struct bt_msg_iter *notit) |
e98a2d6e | 669 | { |
312c056a PP |
670 | notit->dscopes.stream_packet_context = NULL; |
671 | ||
672 | if (notit->packet_context_field) { | |
40f4ba76 | 673 | bt_packet_context_field_release(notit->packet_context_field); |
312c056a PP |
674 | notit->packet_context_field = NULL; |
675 | } | |
676 | ||
677 | release_event_dscopes(notit); | |
e98a2d6e PP |
678 | } |
679 | ||
680 | static | |
d6e69534 PP |
681 | enum bt_msg_iter_status read_packet_header_begin_state( |
682 | struct bt_msg_iter *notit) | |
e98a2d6e | 683 | { |
5cd6d0e5 | 684 | struct ctf_field_class *packet_header_fc = NULL; |
d6e69534 | 685 | enum bt_msg_iter_status ret = BT_MSG_ITER_STATUS_OK; |
e98a2d6e | 686 | |
d6e69534 | 687 | if (bt_msg_iter_switch_packet(notit)) { |
eb7f6c4f | 688 | BT_COMP_LOGW("Cannot switch packet: notit-addr=%p", notit); |
d6e69534 | 689 | ret = BT_MSG_ITER_STATUS_ERROR; |
2cf1d51e JG |
690 | goto end; |
691 | } | |
e98a2d6e | 692 | |
fc917f65 PP |
693 | /* |
694 | * Make sure at least one bit is available for this packet. An | |
695 | * empty packet is impossible. If we reach the end of the medium | |
696 | * at this point, then it's considered the end of the stream. | |
697 | */ | |
698 | ret = buf_ensure_available_bits(notit); | |
699 | switch (ret) { | |
700 | case BT_MSG_ITER_STATUS_OK: | |
701 | break; | |
702 | case BT_MSG_ITER_STATUS_EOF: | |
703 | ret = BT_MSG_ITER_STATUS_OK; | |
188edac1 | 704 | notit->state = STATE_CHECK_EMIT_MSG_STREAM_END; |
fc917f65 PP |
705 | goto end; |
706 | default: | |
707 | goto end; | |
708 | } | |
709 | ||
862ca4ed | 710 | /* Packet header class is common to the whole trace class. */ |
5cd6d0e5 PP |
711 | packet_header_fc = notit->meta.tc->packet_header_fc; |
712 | if (!packet_header_fc) { | |
835b2d10 | 713 | notit->state = STATE_AFTER_TRACE_PACKET_HEADER; |
e98a2d6e PP |
714 | goto end; |
715 | } | |
716 | ||
44c440bc PP |
717 | notit->cur_stream_class_id = -1; |
718 | notit->cur_event_class_id = -1; | |
719 | notit->cur_data_stream_id = -1; | |
eb7f6c4f | 720 | BT_COMP_LOGD("Decoding packet header field:" |
862ca4ed PP |
721 | "notit-addr=%p, trace-class-addr=%p, fc-addr=%p", |
722 | notit, notit->meta.tc, packet_header_fc); | |
5cd6d0e5 | 723 | ret = read_dscope_begin_state(notit, packet_header_fc, |
fdf0e7a0 | 724 | STATE_AFTER_TRACE_PACKET_HEADER, |
83ebb7f1 | 725 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, NULL); |
fdf0e7a0 | 726 | if (ret < 0) { |
eb7f6c4f | 727 | BT_COMP_LOGW("Cannot decode packet header field: " |
862ca4ed PP |
728 | "notit-addr=%p, trace-class-addr=%p, " |
729 | "fc-addr=%p", | |
730 | notit, notit->meta.tc, packet_header_fc); | |
fdf0e7a0 | 731 | } |
d1e46835 | 732 | |
e98a2d6e | 733 | end: |
2cf1d51e | 734 | return ret; |
e98a2d6e PP |
735 | } |
736 | ||
737 | static | |
d6e69534 PP |
738 | enum bt_msg_iter_status read_packet_header_continue_state( |
739 | struct bt_msg_iter *notit) | |
e98a2d6e PP |
740 | { |
741 | return read_dscope_continue_state(notit, | |
44c440bc | 742 | STATE_AFTER_TRACE_PACKET_HEADER); |
5f870343 JG |
743 | } |
744 | ||
e98a2d6e | 745 | static inline |
d6e69534 | 746 | enum bt_msg_iter_status set_current_stream_class(struct bt_msg_iter *notit) |
e98a2d6e | 747 | { |
d6e69534 | 748 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
44c440bc PP |
749 | struct ctf_stream_class *new_stream_class = NULL; |
750 | ||
751 | if (notit->cur_stream_class_id == -1) { | |
fdf0e7a0 | 752 | /* |
44c440bc PP |
753 | * No current stream class ID field, therefore only one |
754 | * stream class. | |
fdf0e7a0 | 755 | */ |
44c440bc | 756 | if (notit->meta.tc->stream_classes->len != 1) { |
eb7f6c4f | 757 | BT_COMP_LOGW("Need exactly one stream class since there's " |
44c440bc | 758 | "no stream class ID field: " |
862ca4ed | 759 | "notit-addr=%p", notit); |
d6e69534 | 760 | status = BT_MSG_ITER_STATUS_ERROR; |
44c440bc PP |
761 | goto end; |
762 | } | |
e98a2d6e | 763 | |
44c440bc PP |
764 | new_stream_class = notit->meta.tc->stream_classes->pdata[0]; |
765 | notit->cur_stream_class_id = new_stream_class->id; | |
e98a2d6e PP |
766 | } |
767 | ||
44c440bc PP |
768 | new_stream_class = ctf_trace_class_borrow_stream_class_by_id( |
769 | notit->meta.tc, notit->cur_stream_class_id); | |
115de887 | 770 | if (!new_stream_class) { |
eb7f6c4f | 771 | BT_COMP_LOGW("No stream class with ID of stream class ID to use in trace class: " |
fdf0e7a0 | 772 | "notit-addr=%p, stream-class-id=%" PRIu64 ", " |
862ca4ed PP |
773 | "trace-class-addr=%p", |
774 | notit, notit->cur_stream_class_id, notit->meta.tc); | |
d6e69534 | 775 | status = BT_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
776 | goto end; |
777 | } | |
778 | ||
44c440bc PP |
779 | if (notit->meta.sc) { |
780 | if (new_stream_class != notit->meta.sc) { | |
eb7f6c4f | 781 | BT_COMP_LOGW("Two packets refer to two different stream classes within the same packet sequence: " |
115de887 | 782 | "notit-addr=%p, prev-stream-class-addr=%p, " |
115de887 PP |
783 | "prev-stream-class-id=%" PRId64 ", " |
784 | "next-stream-class-addr=%p, " | |
115de887 | 785 | "next-stream-class-id=%" PRId64 ", " |
862ca4ed | 786 | "trace-addr=%p", |
44c440bc PP |
787 | notit, notit->meta.sc, |
788 | notit->meta.sc->id, | |
115de887 | 789 | new_stream_class, |
44c440bc | 790 | new_stream_class->id, |
862ca4ed | 791 | notit->meta.tc); |
d6e69534 | 792 | status = BT_MSG_ITER_STATUS_ERROR; |
115de887 PP |
793 | goto end; |
794 | } | |
795 | } else { | |
44c440bc | 796 | notit->meta.sc = new_stream_class; |
115de887 PP |
797 | } |
798 | ||
eb7f6c4f | 799 | BT_COMP_LOGD("Set current stream class: " |
fdf0e7a0 | 800 | "notit-addr=%p, stream-class-addr=%p, " |
44c440bc PP |
801 | "stream-class-id=%" PRId64, |
802 | notit, notit->meta.sc, notit->meta.sc->id); | |
d1e46835 | 803 | |
e98a2d6e | 804 | end: |
e98a2d6e PP |
805 | return status; |
806 | } | |
807 | ||
312c056a | 808 | static inline |
d6e69534 | 809 | enum bt_msg_iter_status set_current_stream(struct bt_msg_iter *notit) |
312c056a | 810 | { |
d6e69534 | 811 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
b19ff26f | 812 | bt_stream *stream = NULL; |
312c056a | 813 | |
eb7f6c4f | 814 | BT_COMP_LOGD("Calling user function (get stream): notit-addr=%p, " |
44c440bc PP |
815 | "stream-class-addr=%p, stream-class-id=%" PRId64, |
816 | notit, notit->meta.sc, | |
817 | notit->meta.sc->id); | |
398454ed | 818 | stream = notit->medium.medops.borrow_stream( |
44c440bc | 819 | notit->meta.sc->ir_sc, notit->cur_data_stream_id, |
398454ed | 820 | notit->medium.data); |
c5b9b441 | 821 | bt_stream_get_ref(stream); |
eb7f6c4f | 822 | BT_COMP_LOGD("User function returned: stream-addr=%p", stream); |
312c056a | 823 | if (!stream) { |
eb7f6c4f | 824 | BT_COMP_LOGW_STR("User function failed to return a stream object " |
44c440bc | 825 | "for the given stream class."); |
d6e69534 | 826 | status = BT_MSG_ITER_STATUS_ERROR; |
312c056a PP |
827 | goto end; |
828 | } | |
829 | ||
830 | if (notit->stream && stream != notit->stream) { | |
eb7f6c4f | 831 | BT_COMP_LOGW("User function returned a different stream than the " |
44c440bc | 832 | "previous one for the same sequence of packets."); |
d6e69534 | 833 | status = BT_MSG_ITER_STATUS_ERROR; |
312c056a PP |
834 | goto end; |
835 | } | |
836 | ||
c5b9b441 | 837 | BT_STREAM_MOVE_REF(notit->stream, stream); |
312c056a PP |
838 | |
839 | end: | |
c5b9b441 | 840 | bt_stream_put_ref(stream); |
312c056a PP |
841 | return status; |
842 | } | |
843 | ||
844 | static inline | |
d6e69534 | 845 | enum bt_msg_iter_status set_current_packet(struct bt_msg_iter *notit) |
312c056a | 846 | { |
d6e69534 | 847 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
b19ff26f | 848 | bt_packet *packet = NULL; |
312c056a | 849 | |
eb7f6c4f | 850 | BT_COMP_LOGD("Creating packet for packet message: " |
312c056a | 851 | "notit-addr=%p", notit); |
eb7f6c4f | 852 | BT_COMP_LOGD("Creating packet from stream: " |
312c056a PP |
853 | "notit-addr=%p, stream-addr=%p, " |
854 | "stream-class-addr=%p, " | |
312c056a | 855 | "stream-class-id=%" PRId64, |
44c440bc PP |
856 | notit, notit->stream, notit->meta.sc, |
857 | notit->meta.sc->id); | |
312c056a PP |
858 | |
859 | /* Create packet */ | |
860 | BT_ASSERT(notit->stream); | |
40f4ba76 | 861 | packet = bt_packet_create(notit->stream); |
312c056a | 862 | if (!packet) { |
eb7f6c4f | 863 | BT_COMP_LOGE("Cannot create packet from stream: " |
312c056a PP |
864 | "notit-addr=%p, stream-addr=%p, " |
865 | "stream-class-addr=%p, " | |
312c056a | 866 | "stream-class-id=%" PRId64, |
44c440bc PP |
867 | notit, notit->stream, notit->meta.sc, |
868 | notit->meta.sc->id); | |
312c056a PP |
869 | goto error; |
870 | } | |
871 | ||
872 | goto end; | |
873 | ||
874 | error: | |
c5b9b441 | 875 | BT_PACKET_PUT_REF_AND_RESET(packet); |
d6e69534 | 876 | status = BT_MSG_ITER_STATUS_ERROR; |
312c056a PP |
877 | |
878 | end: | |
c5b9b441 | 879 | BT_PACKET_MOVE_REF(notit->packet, packet); |
312c056a PP |
880 | return status; |
881 | } | |
882 | ||
e98a2d6e | 883 | static |
d6e69534 PP |
884 | enum bt_msg_iter_status after_packet_header_state( |
885 | struct bt_msg_iter *notit) | |
e98a2d6e | 886 | { |
d6e69534 | 887 | enum bt_msg_iter_status status; |
e98a2d6e PP |
888 | |
889 | status = set_current_stream_class(notit); | |
d6e69534 | 890 | if (status != BT_MSG_ITER_STATUS_OK) { |
312c056a | 891 | goto end; |
e98a2d6e PP |
892 | } |
893 | ||
312c056a PP |
894 | notit->state = STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN; |
895 | ||
896 | end: | |
e98a2d6e PP |
897 | return status; |
898 | } | |
899 | ||
900 | static | |
d6e69534 PP |
901 | enum bt_msg_iter_status read_packet_context_begin_state( |
902 | struct bt_msg_iter *notit) | |
e98a2d6e | 903 | { |
d6e69534 | 904 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 905 | struct ctf_field_class *packet_context_fc; |
e98a2d6e | 906 | |
44c440bc | 907 | BT_ASSERT(notit->meta.sc); |
5cd6d0e5 PP |
908 | packet_context_fc = notit->meta.sc->packet_context_fc; |
909 | if (!packet_context_fc) { | |
eb7f6c4f | 910 | BT_COMP_LOGD("No packet packet context field class in stream class: continuing: " |
fdf0e7a0 | 911 | "notit-addr=%p, stream-class-addr=%p, " |
44c440bc PP |
912 | "stream-class-id=%" PRId64, |
913 | notit, notit->meta.sc, | |
914 | notit->meta.sc->id); | |
835b2d10 | 915 | notit->state = STATE_AFTER_STREAM_PACKET_CONTEXT; |
e98a2d6e PP |
916 | goto end; |
917 | } | |
918 | ||
312c056a | 919 | BT_ASSERT(!notit->packet_context_field); |
44c440bc | 920 | |
5cd6d0e5 | 921 | if (packet_context_fc->in_ir) { |
44c440bc PP |
922 | /* |
923 | * Create free packet context field from stream class. | |
924 | * This field is going to be moved to the packet once we | |
925 | * create it. We cannot create the packet now because a | |
926 | * packet is created from a stream, and this API must be | |
83ebb7f1 PP |
927 | * able to return the packet context properties without |
928 | * creating a stream | |
929 | * (bt_msg_iter_get_packet_properties()). | |
44c440bc PP |
930 | */ |
931 | notit->packet_context_field = | |
40f4ba76 | 932 | bt_packet_context_field_create( |
e5be10ef | 933 | notit->meta.sc->ir_sc); |
44c440bc | 934 | if (!notit->packet_context_field) { |
eb7f6c4f | 935 | BT_COMP_LOGE_STR("Cannot create packet context field wrapper from stream class."); |
d6e69534 | 936 | status = BT_MSG_ITER_STATUS_ERROR; |
44c440bc PP |
937 | goto end; |
938 | } | |
939 | ||
940 | notit->dscopes.stream_packet_context = | |
40f4ba76 | 941 | bt_packet_context_field_borrow_field( |
e5be10ef | 942 | notit->packet_context_field); |
44c440bc | 943 | BT_ASSERT(notit->dscopes.stream_packet_context); |
312c056a PP |
944 | } |
945 | ||
eb7f6c4f | 946 | BT_COMP_LOGD("Decoding packet context field: " |
fdf0e7a0 | 947 | "notit-addr=%p, stream-class-addr=%p, " |
5cd6d0e5 | 948 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc | 949 | notit, notit->meta.sc, |
5cd6d0e5 PP |
950 | notit->meta.sc->id, packet_context_fc); |
951 | status = read_dscope_begin_state(notit, packet_context_fc, | |
fdf0e7a0 PP |
952 | STATE_AFTER_STREAM_PACKET_CONTEXT, |
953 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
312c056a | 954 | notit->dscopes.stream_packet_context); |
fdf0e7a0 | 955 | if (status < 0) { |
eb7f6c4f | 956 | BT_COMP_LOGW("Cannot decode packet context field: " |
fdf0e7a0 | 957 | "notit-addr=%p, stream-class-addr=%p, " |
5cd6d0e5 | 958 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
959 | notit, notit->meta.sc, |
960 | notit->meta.sc->id, | |
5cd6d0e5 | 961 | packet_context_fc); |
fdf0e7a0 | 962 | } |
e98a2d6e PP |
963 | |
964 | end: | |
e98a2d6e PP |
965 | return status; |
966 | } | |
967 | ||
968 | static | |
d6e69534 PP |
969 | enum bt_msg_iter_status read_packet_context_continue_state( |
970 | struct bt_msg_iter *notit) | |
e98a2d6e PP |
971 | { |
972 | return read_dscope_continue_state(notit, | |
78586d8a | 973 | STATE_AFTER_STREAM_PACKET_CONTEXT); |
e98a2d6e PP |
974 | } |
975 | ||
78586d8a | 976 | static |
d6e69534 PP |
977 | enum bt_msg_iter_status set_current_packet_content_sizes( |
978 | struct bt_msg_iter *notit) | |
e98a2d6e | 979 | { |
d6e69534 | 980 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
e98a2d6e | 981 | |
44c440bc PP |
982 | if (notit->cur_exp_packet_total_size == -1) { |
983 | if (notit->cur_exp_packet_content_size != -1) { | |
01f71e30 PP |
984 | notit->cur_exp_packet_total_size = |
985 | notit->cur_exp_packet_content_size; | |
e98a2d6e | 986 | } |
e98a2d6e | 987 | } else { |
44c440bc PP |
988 | if (notit->cur_exp_packet_content_size == -1) { |
989 | notit->cur_exp_packet_content_size = | |
990 | notit->cur_exp_packet_total_size; | |
991 | } | |
e98a2d6e PP |
992 | } |
993 | ||
9067de2b PP |
994 | BT_ASSERT((notit->cur_exp_packet_total_size >= 0 && |
995 | notit->cur_exp_packet_content_size >= 0) || | |
996 | (notit->cur_exp_packet_total_size < 0 && | |
997 | notit->cur_exp_packet_content_size < 0)); | |
01f71e30 | 998 | |
44c440bc PP |
999 | if (notit->cur_exp_packet_content_size > |
1000 | notit->cur_exp_packet_total_size) { | |
eb7f6c4f | 1001 | BT_COMP_LOGW("Invalid packet or content size: " |
44c440bc | 1002 | "content size is greater than packet size: " |
fdf0e7a0 | 1003 | "notit-addr=%p, packet-context-field-addr=%p, " |
44c440bc | 1004 | "packet-size=%" PRId64 ", content-size=%" PRId64, |
fdf0e7a0 | 1005 | notit, notit->dscopes.stream_packet_context, |
44c440bc PP |
1006 | notit->cur_exp_packet_total_size, |
1007 | notit->cur_exp_packet_content_size); | |
d6e69534 | 1008 | status = BT_MSG_ITER_STATUS_ERROR; |
fdf0e7a0 PP |
1009 | goto end; |
1010 | } | |
1011 | ||
eb7f6c4f | 1012 | BT_COMP_LOGD("Set current packet and content sizes: " |
fdf0e7a0 | 1013 | "notit-addr=%p, packet-size=%" PRIu64 ", content-size=%" PRIu64, |
44c440bc PP |
1014 | notit, notit->cur_exp_packet_total_size, |
1015 | notit->cur_exp_packet_content_size); | |
fc917f65 | 1016 | |
e98a2d6e | 1017 | end: |
e98a2d6e PP |
1018 | return status; |
1019 | } | |
1020 | ||
1021 | static | |
fc917f65 | 1022 | enum bt_msg_iter_status after_packet_context_state(struct bt_msg_iter *notit) |
e98a2d6e | 1023 | { |
d6e69534 | 1024 | enum bt_msg_iter_status status; |
e98a2d6e PP |
1025 | |
1026 | status = set_current_packet_content_sizes(notit); | |
d6e69534 | 1027 | if (status != BT_MSG_ITER_STATUS_OK) { |
e22b45d0 PP |
1028 | goto end; |
1029 | } | |
1030 | ||
fc917f65 PP |
1031 | if (notit->stream) { |
1032 | /* | |
1033 | * Stream exists, which means we already emitted at | |
1034 | * least one packet beginning message, so the initial | |
1035 | * stream beginning message was also emitted. | |
1036 | */ | |
495490c5 | 1037 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS; |
e22b45d0 | 1038 | } else { |
495490c5 | 1039 | notit->state = STATE_CHECK_EMIT_MSG_STREAM_BEGINNING; |
e98a2d6e PP |
1040 | } |
1041 | ||
e22b45d0 | 1042 | end: |
e98a2d6e PP |
1043 | return status; |
1044 | } | |
1045 | ||
1046 | static | |
fc917f65 | 1047 | enum bt_msg_iter_status read_event_header_begin_state(struct bt_msg_iter *notit) |
e98a2d6e | 1048 | { |
d6e69534 | 1049 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 1050 | struct ctf_field_class *event_header_fc = NULL; |
e98a2d6e | 1051 | |
174e773b PP |
1052 | /* Reset the position of the last event header */ |
1053 | notit->buf.last_eh_at = notit->buf.at; | |
44c440bc | 1054 | notit->cur_event_class_id = -1; |
174e773b | 1055 | |
e98a2d6e | 1056 | /* Check if we have some content left */ |
44c440bc | 1057 | if (notit->cur_exp_packet_content_size >= 0) { |
91d81473 | 1058 | if (G_UNLIKELY(packet_at(notit) == |
44c440bc | 1059 | notit->cur_exp_packet_content_size)) { |
e98a2d6e | 1060 | /* No more events! */ |
eb7f6c4f | 1061 | BT_COMP_LOGD("Reached end of packet: notit-addr=%p, " |
fdf0e7a0 | 1062 | "cur=%zu", notit, packet_at(notit)); |
fc917f65 | 1063 | notit->state = STATE_EMIT_MSG_PACKET_END_MULTI; |
e98a2d6e | 1064 | goto end; |
91d81473 | 1065 | } else if (G_UNLIKELY(packet_at(notit) > |
44c440bc | 1066 | notit->cur_exp_packet_content_size)) { |
e98a2d6e | 1067 | /* That's not supposed to happen */ |
eb7f6c4f | 1068 | BT_COMP_LOGD("Before decoding event header field: cursor is passed the packet's content: " |
1974687e | 1069 | "notit-addr=%p, content-size=%" PRId64 ", " |
44c440bc PP |
1070 | "cur=%zu", notit, |
1071 | notit->cur_exp_packet_content_size, | |
fdf0e7a0 | 1072 | packet_at(notit)); |
d6e69534 | 1073 | status = BT_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
1074 | goto end; |
1075 | } | |
44c440bc PP |
1076 | } else { |
1077 | /* | |
1078 | * "Infinite" content: we're done when the medium has | |
1079 | * nothing else for us. | |
1080 | */ | |
1081 | status = buf_ensure_available_bits(notit); | |
fc917f65 PP |
1082 | switch (status) { |
1083 | case BT_MSG_ITER_STATUS_OK: | |
1084 | break; | |
1085 | case BT_MSG_ITER_STATUS_EOF: | |
1086 | status = BT_MSG_ITER_STATUS_OK; | |
1087 | notit->state = STATE_EMIT_MSG_PACKET_END_SINGLE; | |
1088 | goto end; | |
1089 | default: | |
44c440bc PP |
1090 | goto end; |
1091 | } | |
e98a2d6e PP |
1092 | } |
1093 | ||
312c056a | 1094 | release_event_dscopes(notit); |
44c440bc | 1095 | BT_ASSERT(notit->meta.sc); |
5cd6d0e5 PP |
1096 | event_header_fc = notit->meta.sc->event_header_fc; |
1097 | if (!event_header_fc) { | |
44c440bc | 1098 | notit->state = STATE_AFTER_EVENT_HEADER; |
e98a2d6e PP |
1099 | goto end; |
1100 | } | |
1101 | ||
eb7f6c4f | 1102 | BT_COMP_LOGD("Decoding event header field: " |
fdf0e7a0 | 1103 | "notit-addr=%p, stream-class-addr=%p, " |
44c440bc | 1104 | "stream-class-id=%" PRId64 ", " |
5cd6d0e5 | 1105 | "fc-addr=%p", |
44c440bc PP |
1106 | notit, notit->meta.sc, |
1107 | notit->meta.sc->id, | |
5cd6d0e5 PP |
1108 | event_header_fc); |
1109 | status = read_dscope_begin_state(notit, event_header_fc, | |
44c440bc | 1110 | STATE_AFTER_EVENT_HEADER, |
83ebb7f1 | 1111 | STATE_DSCOPE_EVENT_HEADER_CONTINUE, NULL); |
fdf0e7a0 | 1112 | if (status < 0) { |
eb7f6c4f | 1113 | BT_COMP_LOGW("Cannot decode event header field: " |
fdf0e7a0 | 1114 | "notit-addr=%p, stream-class-addr=%p, " |
5cd6d0e5 | 1115 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1116 | notit, notit->meta.sc, |
1117 | notit->meta.sc->id, | |
5cd6d0e5 | 1118 | event_header_fc); |
fdf0e7a0 | 1119 | } |
e98a2d6e | 1120 | |
d1e46835 | 1121 | end: |
e98a2d6e PP |
1122 | return status; |
1123 | } | |
1124 | ||
1125 | static | |
d6e69534 PP |
1126 | enum bt_msg_iter_status read_event_header_continue_state( |
1127 | struct bt_msg_iter *notit) | |
e98a2d6e PP |
1128 | { |
1129 | return read_dscope_continue_state(notit, | |
44c440bc | 1130 | STATE_AFTER_EVENT_HEADER); |
e98a2d6e PP |
1131 | } |
1132 | ||
1133 | static inline | |
d6e69534 | 1134 | enum bt_msg_iter_status set_current_event_class(struct bt_msg_iter *notit) |
e98a2d6e | 1135 | { |
d6e69534 | 1136 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
e98a2d6e | 1137 | |
44c440bc | 1138 | struct ctf_event_class *new_event_class = NULL; |
e98a2d6e | 1139 | |
44c440bc | 1140 | if (notit->cur_event_class_id == -1) { |
e98a2d6e | 1141 | /* |
44c440bc PP |
1142 | * No current event class ID field, therefore only one |
1143 | * event class. | |
e98a2d6e | 1144 | */ |
44c440bc | 1145 | if (notit->meta.sc->event_classes->len != 1) { |
eb7f6c4f | 1146 | BT_COMP_LOGW("Need exactly one event class since there's " |
44c440bc | 1147 | "no event class ID field: " |
862ca4ed | 1148 | "notit-addr=%p", notit); |
d6e69534 | 1149 | status = BT_MSG_ITER_STATUS_ERROR; |
44c440bc | 1150 | goto end; |
fdf0e7a0 | 1151 | } |
e98a2d6e | 1152 | |
44c440bc PP |
1153 | new_event_class = notit->meta.sc->event_classes->pdata[0]; |
1154 | notit->cur_event_class_id = new_event_class->id; | |
e98a2d6e PP |
1155 | } |
1156 | ||
44c440bc PP |
1157 | new_event_class = ctf_stream_class_borrow_event_class_by_id( |
1158 | notit->meta.sc, notit->cur_event_class_id); | |
1159 | if (!new_event_class) { | |
eb7f6c4f | 1160 | BT_COMP_LOGW("No event class with ID of event class ID to use in stream class: " |
44c440bc PP |
1161 | "notit-addr=%p, stream-class-id=%" PRIu64 ", " |
1162 | "event-class-id=%" PRIu64 ", " | |
862ca4ed | 1163 | "trace-class-addr=%p", |
44c440bc | 1164 | notit, notit->meta.sc->id, notit->cur_event_class_id, |
862ca4ed | 1165 | notit->meta.tc); |
d6e69534 | 1166 | status = BT_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
1167 | goto end; |
1168 | } | |
1169 | ||
44c440bc | 1170 | notit->meta.ec = new_event_class; |
eb7f6c4f | 1171 | BT_COMP_LOGD("Set current event class: " |
fdf0e7a0 | 1172 | "notit-addr=%p, event-class-addr=%p, " |
44c440bc PP |
1173 | "event-class-id=%" PRId64 ", " |
1174 | "event-class-name=\"%s\"", | |
1175 | notit, notit->meta.ec, notit->meta.ec->id, | |
1176 | notit->meta.ec->name->str); | |
fdf0e7a0 | 1177 | |
e98a2d6e | 1178 | end: |
e98a2d6e PP |
1179 | return status; |
1180 | } | |
1181 | ||
312c056a | 1182 | static inline |
d6e69534 PP |
1183 | enum bt_msg_iter_status set_current_event_message( |
1184 | struct bt_msg_iter *notit) | |
312c056a | 1185 | { |
d6e69534 PP |
1186 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
1187 | bt_message *msg = NULL; | |
312c056a | 1188 | |
44c440bc | 1189 | BT_ASSERT(notit->meta.ec); |
312c056a | 1190 | BT_ASSERT(notit->packet); |
eb7f6c4f | 1191 | BT_COMP_LOGD("Creating event message from event class and packet: " |
312c056a | 1192 | "notit-addr=%p, ec-addr=%p, ec-name=\"%s\", packet-addr=%p", |
44c440bc PP |
1193 | notit, notit->meta.ec, |
1194 | notit->meta.ec->name->str, | |
312c056a | 1195 | notit->packet); |
d6e69534 | 1196 | BT_ASSERT(notit->msg_iter); |
2c091c04 PP |
1197 | BT_ASSERT(notit->meta.sc); |
1198 | ||
1199 | if (bt_stream_class_borrow_default_clock_class(notit->meta.sc->ir_sc)) { | |
26fc5aed | 1200 | msg = bt_message_event_create_with_packet_and_default_clock_snapshot( |
2c091c04 PP |
1201 | notit->msg_iter, notit->meta.ec->ir_ec, |
1202 | notit->packet, notit->default_clock_snapshot); | |
1203 | } else { | |
26fc5aed | 1204 | msg = bt_message_event_create_with_packet(notit->msg_iter, |
2c091c04 PP |
1205 | notit->meta.ec->ir_ec, notit->packet); |
1206 | } | |
1207 | ||
d6e69534 | 1208 | if (!msg) { |
eb7f6c4f | 1209 | BT_COMP_LOGE("Cannot create event message: " |
312c056a PP |
1210 | "notit-addr=%p, ec-addr=%p, ec-name=\"%s\", " |
1211 | "packet-addr=%p", | |
44c440bc PP |
1212 | notit, notit->meta.ec, |
1213 | notit->meta.ec->name->str, | |
312c056a PP |
1214 | notit->packet); |
1215 | goto error; | |
1216 | } | |
1217 | ||
1218 | goto end; | |
1219 | ||
1220 | error: | |
d6e69534 PP |
1221 | BT_MESSAGE_PUT_REF_AND_RESET(msg); |
1222 | status = BT_MSG_ITER_STATUS_ERROR; | |
312c056a PP |
1223 | |
1224 | end: | |
d6e69534 | 1225 | BT_MESSAGE_MOVE_REF(notit->event_msg, msg); |
312c056a PP |
1226 | return status; |
1227 | } | |
1228 | ||
e98a2d6e | 1229 | static |
d6e69534 PP |
1230 | enum bt_msg_iter_status after_event_header_state( |
1231 | struct bt_msg_iter *notit) | |
e98a2d6e | 1232 | { |
d6e69534 | 1233 | enum bt_msg_iter_status status; |
e98a2d6e | 1234 | |
e98a2d6e | 1235 | status = set_current_event_class(notit); |
d6e69534 | 1236 | if (status != BT_MSG_ITER_STATUS_OK) { |
e98a2d6e PP |
1237 | goto end; |
1238 | } | |
1239 | ||
d6e69534 PP |
1240 | status = set_current_event_message(notit); |
1241 | if (status != BT_MSG_ITER_STATUS_OK) { | |
312c056a PP |
1242 | goto end; |
1243 | } | |
1244 | ||
d6e69534 PP |
1245 | notit->event = bt_message_event_borrow_event( |
1246 | notit->event_msg); | |
312c056a | 1247 | BT_ASSERT(notit->event); |
44c440bc | 1248 | notit->state = STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN; |
e98a2d6e PP |
1249 | |
1250 | end: | |
1251 | return status; | |
1252 | } | |
1253 | ||
1254 | static | |
d6e69534 PP |
1255 | enum bt_msg_iter_status read_event_common_context_begin_state( |
1256 | struct bt_msg_iter *notit) | |
e98a2d6e | 1257 | { |
d6e69534 | 1258 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 1259 | struct ctf_field_class *event_common_context_fc; |
e98a2d6e | 1260 | |
5cd6d0e5 PP |
1261 | event_common_context_fc = notit->meta.sc->event_common_context_fc; |
1262 | if (!event_common_context_fc) { | |
44c440bc | 1263 | notit->state = STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN; |
e98a2d6e PP |
1264 | goto end; |
1265 | } | |
1266 | ||
5cd6d0e5 | 1267 | if (event_common_context_fc->in_ir) { |
44c440bc PP |
1268 | BT_ASSERT(!notit->dscopes.event_common_context); |
1269 | notit->dscopes.event_common_context = | |
40f4ba76 | 1270 | bt_event_borrow_common_context_field( |
e5be10ef | 1271 | notit->event); |
44c440bc PP |
1272 | BT_ASSERT(notit->dscopes.event_common_context); |
1273 | } | |
1274 | ||
ef267d12 | 1275 | BT_COMP_LOGT("Decoding event common context field: " |
fdf0e7a0 | 1276 | "notit-addr=%p, stream-class-addr=%p, " |
44c440bc | 1277 | "stream-class-id=%" PRId64 ", " |
5cd6d0e5 | 1278 | "fc-addr=%p", |
44c440bc PP |
1279 | notit, notit->meta.sc, |
1280 | notit->meta.sc->id, | |
5cd6d0e5 PP |
1281 | event_common_context_fc); |
1282 | status = read_dscope_begin_state(notit, event_common_context_fc, | |
44c440bc PP |
1283 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN, |
1284 | STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE, | |
1285 | notit->dscopes.event_common_context); | |
fdf0e7a0 | 1286 | if (status < 0) { |
eb7f6c4f | 1287 | BT_COMP_LOGW("Cannot decode event common context field: " |
fdf0e7a0 | 1288 | "notit-addr=%p, stream-class-addr=%p, " |
5cd6d0e5 | 1289 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1290 | notit, notit->meta.sc, |
1291 | notit->meta.sc->id, | |
5cd6d0e5 | 1292 | event_common_context_fc); |
fdf0e7a0 | 1293 | } |
e98a2d6e PP |
1294 | |
1295 | end: | |
e98a2d6e PP |
1296 | return status; |
1297 | } | |
1298 | ||
1299 | static | |
d6e69534 PP |
1300 | enum bt_msg_iter_status read_event_common_context_continue_state( |
1301 | struct bt_msg_iter *notit) | |
e98a2d6e PP |
1302 | { |
1303 | return read_dscope_continue_state(notit, | |
44c440bc | 1304 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN); |
e98a2d6e PP |
1305 | } |
1306 | ||
1307 | static | |
d6e69534 PP |
1308 | enum bt_msg_iter_status read_event_spec_context_begin_state( |
1309 | struct bt_msg_iter *notit) | |
e98a2d6e | 1310 | { |
d6e69534 | 1311 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 1312 | struct ctf_field_class *event_spec_context_fc; |
e98a2d6e | 1313 | |
5cd6d0e5 PP |
1314 | event_spec_context_fc = notit->meta.ec->spec_context_fc; |
1315 | if (!event_spec_context_fc) { | |
835b2d10 | 1316 | notit->state = STATE_DSCOPE_EVENT_PAYLOAD_BEGIN; |
e98a2d6e PP |
1317 | goto end; |
1318 | } | |
fdf0e7a0 | 1319 | |
5cd6d0e5 | 1320 | if (event_spec_context_fc->in_ir) { |
44c440bc | 1321 | BT_ASSERT(!notit->dscopes.event_spec_context); |
e5be10ef | 1322 | notit->dscopes.event_spec_context = |
40f4ba76 | 1323 | bt_event_borrow_specific_context_field( |
e5be10ef | 1324 | notit->event); |
44c440bc PP |
1325 | BT_ASSERT(notit->dscopes.event_spec_context); |
1326 | } | |
1327 | ||
ef267d12 | 1328 | BT_COMP_LOGT("Decoding event specific context field: " |
fdf0e7a0 PP |
1329 | "notit-addr=%p, event-class-addr=%p, " |
1330 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
5cd6d0e5 | 1331 | "fc-addr=%p", |
44c440bc PP |
1332 | notit, notit->meta.ec, |
1333 | notit->meta.ec->name->str, | |
1334 | notit->meta.ec->id, | |
5cd6d0e5 PP |
1335 | event_spec_context_fc); |
1336 | status = read_dscope_begin_state(notit, event_spec_context_fc, | |
e98a2d6e | 1337 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, |
44c440bc PP |
1338 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE, |
1339 | notit->dscopes.event_spec_context); | |
fdf0e7a0 | 1340 | if (status < 0) { |
eb7f6c4f | 1341 | BT_COMP_LOGW("Cannot decode event specific context field: " |
fdf0e7a0 PP |
1342 | "notit-addr=%p, event-class-addr=%p, " |
1343 | "event-class-name=\"%s\", " | |
5cd6d0e5 | 1344 | "event-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1345 | notit, notit->meta.ec, |
1346 | notit->meta.ec->name->str, | |
1347 | notit->meta.ec->id, | |
5cd6d0e5 | 1348 | event_spec_context_fc); |
fdf0e7a0 | 1349 | } |
e98a2d6e PP |
1350 | |
1351 | end: | |
e98a2d6e PP |
1352 | return status; |
1353 | } | |
1354 | ||
1355 | static | |
d6e69534 PP |
1356 | enum bt_msg_iter_status read_event_spec_context_continue_state( |
1357 | struct bt_msg_iter *notit) | |
e98a2d6e PP |
1358 | { |
1359 | return read_dscope_continue_state(notit, | |
1360 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN); | |
1361 | } | |
1362 | ||
1363 | static | |
d6e69534 PP |
1364 | enum bt_msg_iter_status read_event_payload_begin_state( |
1365 | struct bt_msg_iter *notit) | |
e98a2d6e | 1366 | { |
d6e69534 | 1367 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 1368 | struct ctf_field_class *event_payload_fc; |
e98a2d6e | 1369 | |
5cd6d0e5 PP |
1370 | event_payload_fc = notit->meta.ec->payload_fc; |
1371 | if (!event_payload_fc) { | |
d6e69534 | 1372 | notit->state = STATE_EMIT_MSG_EVENT; |
e98a2d6e PP |
1373 | goto end; |
1374 | } | |
1375 | ||
5cd6d0e5 | 1376 | if (event_payload_fc->in_ir) { |
44c440bc | 1377 | BT_ASSERT(!notit->dscopes.event_payload); |
e5be10ef | 1378 | notit->dscopes.event_payload = |
40f4ba76 | 1379 | bt_event_borrow_payload_field( |
e5be10ef | 1380 | notit->event); |
44c440bc PP |
1381 | BT_ASSERT(notit->dscopes.event_payload); |
1382 | } | |
1383 | ||
ef267d12 | 1384 | BT_COMP_LOGT("Decoding event payload field: " |
fdf0e7a0 PP |
1385 | "notit-addr=%p, event-class-addr=%p, " |
1386 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
5cd6d0e5 | 1387 | "fc-addr=%p", |
44c440bc PP |
1388 | notit, notit->meta.ec, |
1389 | notit->meta.ec->name->str, | |
1390 | notit->meta.ec->id, | |
5cd6d0e5 PP |
1391 | event_payload_fc); |
1392 | status = read_dscope_begin_state(notit, event_payload_fc, | |
d6e69534 | 1393 | STATE_EMIT_MSG_EVENT, |
e98a2d6e | 1394 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, |
312c056a | 1395 | notit->dscopes.event_payload); |
fdf0e7a0 | 1396 | if (status < 0) { |
eb7f6c4f | 1397 | BT_COMP_LOGW("Cannot decode event payload field: " |
fdf0e7a0 PP |
1398 | "notit-addr=%p, event-class-addr=%p, " |
1399 | "event-class-name=\"%s\", " | |
5cd6d0e5 | 1400 | "event-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1401 | notit, notit->meta.ec, |
1402 | notit->meta.ec->name->str, | |
1403 | notit->meta.ec->id, | |
5cd6d0e5 | 1404 | event_payload_fc); |
fdf0e7a0 | 1405 | } |
e98a2d6e PP |
1406 | |
1407 | end: | |
e98a2d6e PP |
1408 | return status; |
1409 | } | |
1410 | ||
1411 | static | |
d6e69534 PP |
1412 | enum bt_msg_iter_status read_event_payload_continue_state( |
1413 | struct bt_msg_iter *notit) | |
e98a2d6e | 1414 | { |
d6e69534 | 1415 | return read_dscope_continue_state(notit, STATE_EMIT_MSG_EVENT); |
e98a2d6e PP |
1416 | } |
1417 | ||
1418 | static | |
fc917f65 | 1419 | enum bt_msg_iter_status skip_packet_padding_state(struct bt_msg_iter *notit) |
e98a2d6e | 1420 | { |
d6e69534 | 1421 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
e98a2d6e PP |
1422 | size_t bits_to_skip; |
1423 | ||
44c440bc PP |
1424 | BT_ASSERT(notit->cur_exp_packet_total_size > 0); |
1425 | bits_to_skip = notit->cur_exp_packet_total_size - packet_at(notit); | |
e98a2d6e PP |
1426 | if (bits_to_skip == 0) { |
1427 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1428 | goto end; | |
1429 | } else { | |
1430 | size_t bits_to_consume; | |
fdf0e7a0 | 1431 | |
eb7f6c4f | 1432 | BT_COMP_LOGD("Trying to skip %zu bits of padding: notit-addr=%p, size=%zu", |
fdf0e7a0 | 1433 | bits_to_skip, notit, bits_to_skip); |
e98a2d6e | 1434 | status = buf_ensure_available_bits(notit); |
d6e69534 | 1435 | if (status != BT_MSG_ITER_STATUS_OK) { |
e98a2d6e PP |
1436 | goto end; |
1437 | } | |
1438 | ||
1439 | bits_to_consume = MIN(buf_available_bits(notit), bits_to_skip); | |
eb7f6c4f | 1440 | BT_COMP_LOGD("Skipping %zu bits of padding: notit-addr=%p, size=%zu", |
fdf0e7a0 | 1441 | bits_to_consume, notit, bits_to_consume); |
e98a2d6e | 1442 | buf_consume_bits(notit, bits_to_consume); |
44c440bc PP |
1443 | bits_to_skip = notit->cur_exp_packet_total_size - |
1444 | packet_at(notit); | |
e98a2d6e PP |
1445 | if (bits_to_skip == 0) { |
1446 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1447 | goto end; | |
1448 | } | |
1449 | } | |
1450 | ||
1451 | end: | |
1452 | return status; | |
1453 | } | |
1454 | ||
495490c5 PP |
1455 | static |
1456 | enum bt_msg_iter_status check_emit_msg_stream_beginning_state( | |
1457 | struct bt_msg_iter *notit) | |
1458 | { | |
1459 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; | |
1460 | ||
1461 | if (notit->set_stream) { | |
1462 | status = set_current_stream(notit); | |
1463 | if (status != BT_MSG_ITER_STATUS_OK) { | |
1464 | goto end; | |
1465 | } | |
1466 | } | |
1467 | ||
1468 | if (notit->emit_stream_begin_msg) { | |
1469 | notit->state = STATE_EMIT_MSG_STREAM_BEGINNING; | |
1470 | } else { | |
1471 | /* Stream's first packet */ | |
1472 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS; | |
1473 | } | |
1474 | ||
1475 | end: | |
1476 | return status; | |
1477 | } | |
1478 | ||
1479 | static | |
1480 | enum bt_msg_iter_status check_emit_msg_discarded_events( | |
1481 | struct bt_msg_iter *notit) | |
1482 | { | |
1483 | notit->state = STATE_EMIT_MSG_DISCARDED_EVENTS; | |
1484 | ||
afd45274 PP |
1485 | if (!notit->meta.sc->has_discarded_events) { |
1486 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS; | |
1487 | goto end; | |
1488 | } | |
1489 | ||
495490c5 PP |
1490 | if (notit->prev_packet_snapshots.discarded_events == UINT64_C(-1)) { |
1491 | if (notit->snapshots.discarded_events == 0 || | |
1492 | notit->snapshots.discarded_events == UINT64_C(-1)) { | |
1493 | /* | |
1494 | * Stream's first packet with no discarded | |
1495 | * events or no information about discarded | |
1496 | * events: do not emit. | |
1497 | */ | |
1498 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS; | |
1499 | } | |
1500 | } else { | |
1501 | /* | |
1502 | * If the previous packet has a value for this counter, | |
1503 | * then this counter is defined for the whole stream. | |
1504 | */ | |
1505 | BT_ASSERT(notit->snapshots.discarded_events != UINT64_C(-1)); | |
1506 | ||
1507 | if (notit->snapshots.discarded_events - | |
1508 | notit->prev_packet_snapshots.discarded_events == 0) { | |
1509 | /* | |
1510 | * No discarded events since previous packet: do | |
1511 | * not emit. | |
1512 | */ | |
1513 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS; | |
1514 | } | |
1515 | } | |
1516 | ||
afd45274 | 1517 | end: |
495490c5 PP |
1518 | return BT_MSG_ITER_STATUS_OK; |
1519 | } | |
1520 | ||
1521 | static | |
1522 | enum bt_msg_iter_status check_emit_msg_discarded_packets( | |
1523 | struct bt_msg_iter *notit) | |
1524 | { | |
1525 | notit->state = STATE_EMIT_MSG_DISCARDED_PACKETS; | |
1526 | ||
afd45274 PP |
1527 | if (!notit->meta.sc->has_discarded_packets) { |
1528 | notit->state = STATE_EMIT_MSG_PACKET_BEGINNING; | |
1529 | goto end; | |
1530 | } | |
1531 | ||
495490c5 PP |
1532 | if (notit->prev_packet_snapshots.packets == UINT64_C(-1)) { |
1533 | /* | |
1534 | * Stream's first packet or no information about | |
1535 | * discarded packets: do not emit. In other words, if | |
1536 | * this is the first packet and its sequence number is | |
1537 | * not 0, do not consider that packets were previously | |
1538 | * lost: we might be reading a partial stream (LTTng | |
1539 | * snapshot for example). | |
1540 | */ | |
1541 | notit->state = STATE_EMIT_MSG_PACKET_BEGINNING; | |
1542 | } else { | |
1543 | /* | |
1544 | * If the previous packet has a value for this counter, | |
1545 | * then this counter is defined for the whole stream. | |
1546 | */ | |
1547 | BT_ASSERT(notit->snapshots.packets != UINT64_C(-1)); | |
1548 | ||
1549 | if (notit->snapshots.packets - | |
1550 | notit->prev_packet_snapshots.packets <= 1) { | |
1551 | /* | |
1552 | * No discarded packets since previous packet: | |
1553 | * do not emit. | |
1554 | */ | |
1555 | notit->state = STATE_EMIT_MSG_PACKET_BEGINNING; | |
1556 | } | |
1557 | } | |
1558 | ||
afd45274 | 1559 | end: |
495490c5 PP |
1560 | return BT_MSG_ITER_STATUS_OK; |
1561 | } | |
1562 | ||
1563 | static | |
188edac1 | 1564 | enum bt_msg_iter_status check_emit_msg_stream_end( |
495490c5 PP |
1565 | struct bt_msg_iter *notit) |
1566 | { | |
1567 | if (notit->emit_stream_end_msg) { | |
188edac1 | 1568 | notit->state = STATE_EMIT_MSG_STREAM_END; |
495490c5 PP |
1569 | } else { |
1570 | notit->state = STATE_DONE; | |
1571 | } | |
1572 | ||
1573 | return BT_MSG_ITER_STATUS_OK; | |
1574 | } | |
1575 | ||
e98a2d6e | 1576 | static inline |
d6e69534 | 1577 | enum bt_msg_iter_status handle_state(struct bt_msg_iter *notit) |
e98a2d6e | 1578 | { |
d6e69534 | 1579 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
fdf0e7a0 | 1580 | const enum state state = notit->state; |
e98a2d6e | 1581 | |
ef267d12 | 1582 | BT_COMP_LOGT("Handling state: notit-addr=%p, state=%s", |
fdf0e7a0 | 1583 | notit, state_string(state)); |
e98a2d6e PP |
1584 | |
1585 | // TODO: optimalize! | |
fdf0e7a0 | 1586 | switch (state) { |
e98a2d6e PP |
1587 | case STATE_INIT: |
1588 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1589 | break; | |
1590 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
1591 | status = read_packet_header_begin_state(notit); | |
1592 | break; | |
1593 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
1594 | status = read_packet_header_continue_state(notit); | |
1595 | break; | |
1596 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
1597 | status = after_packet_header_state(notit); | |
1598 | break; | |
1599 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
1600 | status = read_packet_context_begin_state(notit); | |
1601 | break; | |
1602 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
1603 | status = read_packet_context_continue_state(notit); | |
1604 | break; | |
1605 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
1606 | status = after_packet_context_state(notit); | |
1607 | break; | |
495490c5 PP |
1608 | case STATE_CHECK_EMIT_MSG_STREAM_BEGINNING: |
1609 | status = check_emit_msg_stream_beginning_state(notit); | |
1610 | break; | |
fc917f65 | 1611 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
495490c5 PP |
1612 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS; |
1613 | break; | |
1614 | case STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS: | |
1615 | status = check_emit_msg_discarded_events(notit); | |
1616 | break; | |
1617 | case STATE_EMIT_MSG_DISCARDED_EVENTS: | |
1618 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS; | |
1619 | break; | |
1620 | case STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS: | |
1621 | status = check_emit_msg_discarded_packets(notit); | |
1622 | break; | |
1623 | case STATE_EMIT_MSG_DISCARDED_PACKETS: | |
fc917f65 | 1624 | notit->state = STATE_EMIT_MSG_PACKET_BEGINNING; |
f42867e2 | 1625 | break; |
fc917f65 | 1626 | case STATE_EMIT_MSG_PACKET_BEGINNING: |
44c440bc | 1627 | notit->state = STATE_DSCOPE_EVENT_HEADER_BEGIN; |
e98a2d6e | 1628 | break; |
44c440bc | 1629 | case STATE_DSCOPE_EVENT_HEADER_BEGIN: |
e98a2d6e PP |
1630 | status = read_event_header_begin_state(notit); |
1631 | break; | |
44c440bc | 1632 | case STATE_DSCOPE_EVENT_HEADER_CONTINUE: |
e98a2d6e PP |
1633 | status = read_event_header_continue_state(notit); |
1634 | break; | |
44c440bc | 1635 | case STATE_AFTER_EVENT_HEADER: |
e98a2d6e PP |
1636 | status = after_event_header_state(notit); |
1637 | break; | |
44c440bc PP |
1638 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN: |
1639 | status = read_event_common_context_begin_state(notit); | |
e98a2d6e | 1640 | break; |
44c440bc PP |
1641 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE: |
1642 | status = read_event_common_context_continue_state(notit); | |
e98a2d6e | 1643 | break; |
44c440bc PP |
1644 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN: |
1645 | status = read_event_spec_context_begin_state(notit); | |
e98a2d6e | 1646 | break; |
44c440bc PP |
1647 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE: |
1648 | status = read_event_spec_context_continue_state(notit); | |
e98a2d6e PP |
1649 | break; |
1650 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
1651 | status = read_event_payload_begin_state(notit); | |
1652 | break; | |
1653 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
1654 | status = read_event_payload_continue_state(notit); | |
1655 | break; | |
d6e69534 | 1656 | case STATE_EMIT_MSG_EVENT: |
44c440bc | 1657 | notit->state = STATE_DSCOPE_EVENT_HEADER_BEGIN; |
e98a2d6e PP |
1658 | break; |
1659 | case STATE_SKIP_PACKET_PADDING: | |
1660 | status = skip_packet_padding_state(notit); | |
1661 | break; | |
fc917f65 | 1662 | case STATE_EMIT_MSG_PACKET_END_MULTI: |
e98a2d6e PP |
1663 | notit->state = STATE_SKIP_PACKET_PADDING; |
1664 | break; | |
fc917f65 | 1665 | case STATE_EMIT_MSG_PACKET_END_SINGLE: |
188edac1 | 1666 | notit->state = STATE_CHECK_EMIT_MSG_STREAM_END; |
495490c5 | 1667 | break; |
188edac1 SM |
1668 | case STATE_CHECK_EMIT_MSG_STREAM_END: |
1669 | status = check_emit_msg_stream_end(notit); | |
fc917f65 PP |
1670 | break; |
1671 | case STATE_EMIT_MSG_STREAM_END: | |
1672 | notit->state = STATE_DONE; | |
1673 | break; | |
1674 | case STATE_DONE: | |
1675 | break; | |
fdf0e7a0 | 1676 | default: |
eb7f6c4f | 1677 | BT_COMP_LOGF("Unknown CTF plugin message iterator state: " |
fdf0e7a0 PP |
1678 | "notit-addr=%p, state=%d", notit, notit->state); |
1679 | abort(); | |
e98a2d6e PP |
1680 | } |
1681 | ||
ef267d12 | 1682 | BT_COMP_LOGT("Handled state: notit-addr=%p, status=%s, " |
fdf0e7a0 | 1683 | "prev-state=%s, cur-state=%s", |
d6e69534 | 1684 | notit, bt_msg_iter_status_string(status), |
fdf0e7a0 | 1685 | state_string(state), state_string(notit->state)); |
e98a2d6e PP |
1686 | return status; |
1687 | } | |
1688 | ||
f42867e2 | 1689 | BT_HIDDEN |
495490c5 | 1690 | void bt_msg_iter_reset_for_next_stream_file(struct bt_msg_iter *notit) |
e98a2d6e | 1691 | { |
f6ccaed9 | 1692 | BT_ASSERT(notit); |
eb7f6c4f | 1693 | BT_COMP_LOGD("Resetting message iterator: addr=%p", notit); |
e98a2d6e | 1694 | stack_clear(notit->stack); |
44c440bc PP |
1695 | notit->meta.sc = NULL; |
1696 | notit->meta.ec = NULL; | |
c5b9b441 PP |
1697 | BT_PACKET_PUT_REF_AND_RESET(notit->packet); |
1698 | BT_STREAM_PUT_REF_AND_RESET(notit->stream); | |
d6e69534 | 1699 | BT_MESSAGE_PUT_REF_AND_RESET(notit->event_msg); |
312c056a PP |
1700 | release_all_dscopes(notit); |
1701 | notit->cur_dscope_field = NULL; | |
1702 | ||
312c056a | 1703 | if (notit->packet_context_field) { |
40f4ba76 | 1704 | bt_packet_context_field_release(notit->packet_context_field); |
312c056a PP |
1705 | notit->packet_context_field = NULL; |
1706 | } | |
1707 | ||
e98a2d6e PP |
1708 | notit->buf.addr = NULL; |
1709 | notit->buf.sz = 0; | |
1710 | notit->buf.at = 0; | |
2b186c3e | 1711 | notit->buf.last_eh_at = SIZE_MAX; |
e98a2d6e PP |
1712 | notit->buf.packet_offset = 0; |
1713 | notit->state = STATE_INIT; | |
44c440bc PP |
1714 | notit->cur_exp_packet_content_size = -1; |
1715 | notit->cur_exp_packet_total_size = -1; | |
9e0c8dbb | 1716 | notit->cur_packet_offset = -1; |
44c440bc | 1717 | notit->cur_event_class_id = -1; |
495490c5 PP |
1718 | notit->snapshots.beginning_clock = UINT64_C(-1); |
1719 | notit->snapshots.end_clock = UINT64_C(-1); | |
1720 | } | |
1721 | ||
1722 | /** | |
1723 | * Resets the internal state of a CTF message iterator. | |
1724 | */ | |
1725 | BT_HIDDEN | |
1726 | void bt_msg_iter_reset(struct bt_msg_iter *notit) | |
1727 | { | |
1728 | bt_msg_iter_reset_for_next_stream_file(notit); | |
1729 | notit->cur_stream_class_id = -1; | |
44c440bc | 1730 | notit->cur_data_stream_id = -1; |
fc917f65 PP |
1731 | notit->emit_stream_begin_msg = true; |
1732 | notit->emit_stream_end_msg = true; | |
495490c5 PP |
1733 | notit->snapshots.discarded_events = UINT64_C(-1); |
1734 | notit->snapshots.packets = UINT64_C(-1); | |
1735 | notit->prev_packet_snapshots.discarded_events = UINT64_C(-1); | |
1736 | notit->prev_packet_snapshots.packets = UINT64_C(-1); | |
1737 | notit->prev_packet_snapshots.beginning_clock = UINT64_C(-1); | |
1738 | notit->prev_packet_snapshots.end_clock = UINT64_C(-1); | |
e98a2d6e PP |
1739 | } |
1740 | ||
2cf1d51e | 1741 | static |
d6e69534 | 1742 | int bt_msg_iter_switch_packet(struct bt_msg_iter *notit) |
2cf1d51e JG |
1743 | { |
1744 | int ret = 0; | |
1745 | ||
115de887 PP |
1746 | /* |
1747 | * We don't put the stream class here because we need to make | |
d6e69534 | 1748 | * sure that all the packets processed by the same message |
115de887 PP |
1749 | * iterator refer to the same stream class (the first one). |
1750 | */ | |
f6ccaed9 | 1751 | BT_ASSERT(notit); |
312c056a | 1752 | |
44c440bc PP |
1753 | if (notit->cur_exp_packet_total_size != -1) { |
1754 | notit->cur_packet_offset += notit->cur_exp_packet_total_size; | |
9e0c8dbb | 1755 | } |
312c056a | 1756 | |
eb7f6c4f | 1757 | BT_COMP_LOGD("Switching packet: notit-addr=%p, cur=%zu, " |
9e0c8dbb JG |
1758 | "packet-offset=%" PRId64, notit, notit->buf.at, |
1759 | notit->cur_packet_offset); | |
2cf1d51e | 1760 | stack_clear(notit->stack); |
44c440bc | 1761 | notit->meta.ec = NULL; |
c5b9b441 | 1762 | BT_PACKET_PUT_REF_AND_RESET(notit->packet); |
d6e69534 | 1763 | BT_MESSAGE_PUT_REF_AND_RESET(notit->event_msg); |
312c056a PP |
1764 | release_all_dscopes(notit); |
1765 | notit->cur_dscope_field = NULL; | |
2cf1d51e JG |
1766 | |
1767 | /* | |
1768 | * Adjust current buffer so that addr points to the beginning of the new | |
1769 | * packet. | |
1770 | */ | |
1771 | if (notit->buf.addr) { | |
1772 | size_t consumed_bytes = (size_t) (notit->buf.at / CHAR_BIT); | |
1773 | ||
1774 | /* Packets are assumed to start on a byte frontier. */ | |
1775 | if (notit->buf.at % CHAR_BIT) { | |
eb7f6c4f | 1776 | BT_COMP_LOGW("Cannot switch packet: current position is not a multiple of 8: " |
fdf0e7a0 | 1777 | "notit-addr=%p, cur=%zu", notit, notit->buf.at); |
2cf1d51e JG |
1778 | ret = -1; |
1779 | goto end; | |
1780 | } | |
1781 | ||
1782 | notit->buf.addr += consumed_bytes; | |
1783 | notit->buf.sz -= consumed_bytes; | |
1784 | notit->buf.at = 0; | |
1785 | notit->buf.packet_offset = 0; | |
eb7f6c4f | 1786 | BT_COMP_LOGD("Adjusted buffer: addr=%p, size=%zu", |
fdf0e7a0 | 1787 | notit->buf.addr, notit->buf.sz); |
2cf1d51e JG |
1788 | } |
1789 | ||
44c440bc PP |
1790 | notit->cur_exp_packet_content_size = -1; |
1791 | notit->cur_exp_packet_total_size = -1; | |
1792 | notit->cur_stream_class_id = -1; | |
1793 | notit->cur_event_class_id = -1; | |
1794 | notit->cur_data_stream_id = -1; | |
495490c5 | 1795 | notit->prev_packet_snapshots = notit->snapshots; |
44c440bc PP |
1796 | notit->snapshots.discarded_events = UINT64_C(-1); |
1797 | notit->snapshots.packets = UINT64_C(-1); | |
1798 | notit->snapshots.beginning_clock = UINT64_C(-1); | |
1799 | notit->snapshots.end_clock = UINT64_C(-1); | |
fdf0e7a0 | 1800 | |
2cf1d51e JG |
1801 | end: |
1802 | return ret; | |
1803 | } | |
1804 | ||
e98a2d6e | 1805 | static |
d6e69534 | 1806 | bt_field *borrow_next_field(struct bt_msg_iter *notit) |
e98a2d6e | 1807 | { |
b19ff26f PP |
1808 | bt_field *next_field = NULL; |
1809 | bt_field *base_field; | |
1810 | const bt_field_class *base_fc; | |
e98a2d6e PP |
1811 | size_t index; |
1812 | ||
f6ccaed9 | 1813 | BT_ASSERT(!stack_empty(notit->stack)); |
e98a2d6e PP |
1814 | index = stack_top(notit->stack)->index; |
1815 | base_field = stack_top(notit->stack)->base; | |
f6ccaed9 | 1816 | BT_ASSERT(base_field); |
40f4ba76 | 1817 | base_fc = bt_field_borrow_class_const(base_field); |
5cd6d0e5 | 1818 | BT_ASSERT(base_fc); |
e98a2d6e | 1819 | |
40f4ba76 | 1820 | switch (bt_field_class_get_type(base_fc)) { |
864cad70 | 1821 | case BT_FIELD_CLASS_TYPE_STRUCTURE: |
f42867e2 | 1822 | { |
44c440bc | 1823 | BT_ASSERT(index < |
5cd6d0e5 | 1824 | bt_field_class_structure_get_member_count( |
40f4ba76 PP |
1825 | bt_field_borrow_class_const( |
1826 | base_field))); | |
e5be10ef | 1827 | next_field = |
40f4ba76 | 1828 | bt_field_structure_borrow_member_field_by_index( |
e5be10ef | 1829 | base_field, index); |
e98a2d6e | 1830 | break; |
f42867e2 | 1831 | } |
864cad70 PP |
1832 | case BT_FIELD_CLASS_TYPE_STATIC_ARRAY: |
1833 | case BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY: | |
40f4ba76 PP |
1834 | BT_ASSERT(index < bt_field_array_get_length(base_field)); |
1835 | next_field = bt_field_array_borrow_element_field_by_index( | |
44c440bc | 1836 | base_field, index); |
e98a2d6e | 1837 | break; |
45c51519 PP |
1838 | case BT_FIELD_CLASS_TYPE_VARIANT_WITHOUT_SELECTOR: |
1839 | case BT_FIELD_CLASS_TYPE_VARIANT_WITH_UNSIGNED_SELECTOR: | |
1840 | case BT_FIELD_CLASS_TYPE_VARIANT_WITH_SIGNED_SELECTOR: | |
44c440bc | 1841 | BT_ASSERT(index == 0); |
40f4ba76 | 1842 | next_field = bt_field_variant_borrow_selected_option_field( |
44c440bc | 1843 | base_field); |
e98a2d6e PP |
1844 | break; |
1845 | default: | |
0fbb9a9f | 1846 | abort(); |
e98a2d6e PP |
1847 | } |
1848 | ||
44c440bc | 1849 | BT_ASSERT(next_field); |
e98a2d6e PP |
1850 | return next_field; |
1851 | } | |
1852 | ||
c44c3e70 | 1853 | static |
d6e69534 | 1854 | void update_default_clock(struct bt_msg_iter *notit, uint64_t new_val, |
44c440bc | 1855 | uint64_t new_val_size) |
c44c3e70 | 1856 | { |
44c440bc | 1857 | uint64_t new_val_mask; |
c44c3e70 | 1858 | uint64_t cur_value_masked; |
c44c3e70 | 1859 | |
44c440bc | 1860 | BT_ASSERT(new_val_size > 0); |
c44c3e70 JG |
1861 | |
1862 | /* | |
1863 | * Special case for a 64-bit new value, which is the limit | |
1864 | * of a clock value as of this version: overwrite the | |
1865 | * current value directly. | |
1866 | */ | |
44c440bc | 1867 | if (new_val_size == 64) { |
605e1019 | 1868 | notit->default_clock_snapshot = new_val; |
c44c3e70 JG |
1869 | goto end; |
1870 | } | |
1871 | ||
44c440bc | 1872 | new_val_mask = (1ULL << new_val_size) - 1; |
605e1019 | 1873 | cur_value_masked = notit->default_clock_snapshot & new_val_mask; |
c44c3e70 | 1874 | |
44c440bc | 1875 | if (new_val < cur_value_masked) { |
c44c3e70 JG |
1876 | /* |
1877 | * It looks like a wrap happened on the number of bits | |
1878 | * of the requested new value. Assume that the clock | |
1879 | * value wrapped only one time. | |
1880 | */ | |
605e1019 | 1881 | notit->default_clock_snapshot += new_val_mask + 1; |
c44c3e70 JG |
1882 | } |
1883 | ||
1884 | /* Clear the low bits of the current clock value. */ | |
605e1019 | 1885 | notit->default_clock_snapshot &= ~new_val_mask; |
c44c3e70 JG |
1886 | |
1887 | /* Set the low bits of the current clock value. */ | |
605e1019 | 1888 | notit->default_clock_snapshot |= new_val; |
d1e46835 | 1889 | |
c44c3e70 | 1890 | end: |
ef267d12 | 1891 | BT_COMP_LOGT("Updated default clock's value from integer field's value: " |
605e1019 | 1892 | "value=%" PRIu64, notit->default_clock_snapshot); |
c44c3e70 JG |
1893 | } |
1894 | ||
1895 | static | |
5cd6d0e5 PP |
1896 | enum bt_bfcr_status bfcr_unsigned_int_cb(uint64_t value, |
1897 | struct ctf_field_class *fc, void *data) | |
c44c3e70 | 1898 | { |
d6e69534 | 1899 | struct bt_msg_iter *notit = data; |
5cd6d0e5 | 1900 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 1901 | bt_field *field = NULL; |
5cd6d0e5 | 1902 | struct ctf_field_class_int *int_fc = (void *) fc; |
c44c3e70 | 1903 | |
ef267d12 | 1904 | BT_COMP_LOGT("Unsigned integer function called from BFCR: " |
5cd6d0e5 | 1905 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 PP |
1906 | "fc-type=%d, fc-in-ir=%d, value=%" PRIu64, |
1907 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
312c056a | 1908 | |
91d81473 | 1909 | if (G_LIKELY(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE)) { |
44c440bc | 1910 | goto update_def_clock; |
c44c3e70 JG |
1911 | } |
1912 | ||
5cd6d0e5 PP |
1913 | switch (int_fc->meaning) { |
1914 | case CTF_FIELD_CLASS_MEANING_EVENT_CLASS_ID: | |
44c440bc PP |
1915 | notit->cur_event_class_id = value; |
1916 | break; | |
5cd6d0e5 | 1917 | case CTF_FIELD_CLASS_MEANING_DATA_STREAM_ID: |
44c440bc PP |
1918 | notit->cur_data_stream_id = value; |
1919 | break; | |
5cd6d0e5 | 1920 | case CTF_FIELD_CLASS_MEANING_PACKET_BEGINNING_TIME: |
44c440bc PP |
1921 | notit->snapshots.beginning_clock = value; |
1922 | break; | |
5cd6d0e5 | 1923 | case CTF_FIELD_CLASS_MEANING_PACKET_END_TIME: |
44c440bc PP |
1924 | notit->snapshots.end_clock = value; |
1925 | break; | |
5cd6d0e5 | 1926 | case CTF_FIELD_CLASS_MEANING_STREAM_CLASS_ID: |
44c440bc PP |
1927 | notit->cur_stream_class_id = value; |
1928 | break; | |
5cd6d0e5 | 1929 | case CTF_FIELD_CLASS_MEANING_MAGIC: |
44c440bc | 1930 | if (value != 0xc1fc1fc1) { |
eb7f6c4f | 1931 | BT_COMP_LOGW("Invalid CTF magic number: notit-addr=%p, " |
44c440bc | 1932 | "magic=%" PRIx64, notit, value); |
5cd6d0e5 | 1933 | status = BT_BFCR_STATUS_ERROR; |
c44c3e70 JG |
1934 | goto end; |
1935 | } | |
fdf0e7a0 | 1936 | |
44c440bc | 1937 | break; |
5cd6d0e5 | 1938 | case CTF_FIELD_CLASS_MEANING_PACKET_COUNTER_SNAPSHOT: |
44c440bc PP |
1939 | notit->snapshots.packets = value; |
1940 | break; | |
5cd6d0e5 | 1941 | case CTF_FIELD_CLASS_MEANING_DISC_EV_REC_COUNTER_SNAPSHOT: |
44c440bc PP |
1942 | notit->snapshots.discarded_events = value; |
1943 | break; | |
5cd6d0e5 | 1944 | case CTF_FIELD_CLASS_MEANING_EXP_PACKET_TOTAL_SIZE: |
44c440bc PP |
1945 | notit->cur_exp_packet_total_size = value; |
1946 | break; | |
5cd6d0e5 | 1947 | case CTF_FIELD_CLASS_MEANING_EXP_PACKET_CONTENT_SIZE: |
44c440bc PP |
1948 | notit->cur_exp_packet_content_size = value; |
1949 | break; | |
1950 | default: | |
1951 | abort(); | |
c44c3e70 JG |
1952 | } |
1953 | ||
44c440bc | 1954 | update_def_clock: |
91d81473 | 1955 | if (G_UNLIKELY(int_fc->mapped_clock_class)) { |
5cd6d0e5 | 1956 | update_default_clock(notit, value, int_fc->base.size); |
44c440bc | 1957 | } |
c44c3e70 | 1958 | |
91d81473 | 1959 | if (G_UNLIKELY(int_fc->storing_index >= 0)) { |
44c440bc | 1960 | g_array_index(notit->stored_values, uint64_t, |
5cd6d0e5 | 1961 | (uint64_t) int_fc->storing_index) = value; |
44c440bc | 1962 | } |
e98a2d6e | 1963 | |
91d81473 | 1964 | if (G_UNLIKELY(!fc->in_ir)) { |
312c056a | 1965 | goto end; |
e98a2d6e PP |
1966 | } |
1967 | ||
44c440bc PP |
1968 | field = borrow_next_field(notit); |
1969 | BT_ASSERT(field); | |
40f4ba76 PP |
1970 | BT_ASSERT(bt_field_borrow_class_const(field) == fc->ir_fc); |
1971 | BT_ASSERT(bt_field_get_class_type(field) == | |
1972 | BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER || | |
1973 | bt_field_get_class_type(field) == | |
1974 | BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION); | |
9c08c816 | 1975 | bt_field_integer_unsigned_set_value(field, value); |
e98a2d6e | 1976 | stack_top(notit->stack)->index++; |
fdf0e7a0 | 1977 | |
312c056a | 1978 | end: |
e98a2d6e PP |
1979 | return status; |
1980 | } | |
1981 | ||
5f870343 | 1982 | static |
5cd6d0e5 PP |
1983 | enum bt_bfcr_status bfcr_unsigned_int_char_cb(uint64_t value, |
1984 | struct ctf_field_class *fc, void *data) | |
5f870343 | 1985 | { |
44c440bc | 1986 | int ret; |
d6e69534 | 1987 | struct bt_msg_iter *notit = data; |
5cd6d0e5 | 1988 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 1989 | bt_field *string_field = NULL; |
5cd6d0e5 | 1990 | struct ctf_field_class_int *int_fc = (void *) fc; |
44c440bc | 1991 | char str[2] = {'\0', '\0'}; |
5f870343 | 1992 | |
ef267d12 | 1993 | BT_COMP_LOGT("Unsigned integer character function called from BFCR: " |
5cd6d0e5 | 1994 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 PP |
1995 | "fc-type=%d, fc-in-ir=%d, value=%" PRIu64, |
1996 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
5cd6d0e5 PP |
1997 | BT_ASSERT(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE); |
1998 | BT_ASSERT(!int_fc->mapped_clock_class); | |
1999 | BT_ASSERT(int_fc->storing_index < 0); | |
312c056a | 2000 | |
91d81473 | 2001 | if (G_UNLIKELY(!fc->in_ir)) { |
44c440bc PP |
2002 | goto end; |
2003 | } | |
5f870343 | 2004 | |
44c440bc | 2005 | if (notit->done_filling_string) { |
5f870343 JG |
2006 | goto end; |
2007 | } | |
2008 | ||
44c440bc PP |
2009 | if (value == 0) { |
2010 | notit->done_filling_string = true; | |
5f870343 JG |
2011 | goto end; |
2012 | } | |
2013 | ||
44c440bc | 2014 | string_field = stack_top(notit->stack)->base; |
40f4ba76 PP |
2015 | BT_ASSERT(bt_field_get_class_type(string_field) == |
2016 | BT_FIELD_CLASS_TYPE_STRING); | |
44c440bc PP |
2017 | |
2018 | /* Append character */ | |
2019 | str[0] = (char) value; | |
40f4ba76 | 2020 | ret = bt_field_string_append_with_length(string_field, str, 1); |
44c440bc | 2021 | if (ret) { |
eb7f6c4f | 2022 | BT_COMP_LOGE("Cannot append character to string field's value: " |
44c440bc PP |
2023 | "notit-addr=%p, field-addr=%p, ret=%d", |
2024 | notit, string_field, ret); | |
5cd6d0e5 | 2025 | status = BT_BFCR_STATUS_ERROR; |
44c440bc PP |
2026 | goto end; |
2027 | } | |
312c056a | 2028 | |
5f870343 JG |
2029 | end: |
2030 | return status; | |
2031 | } | |
2032 | ||
2033 | static | |
5cd6d0e5 PP |
2034 | enum bt_bfcr_status bfcr_signed_int_cb(int64_t value, |
2035 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2036 | { |
5cd6d0e5 | 2037 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 2038 | bt_field *field = NULL; |
d6e69534 | 2039 | struct bt_msg_iter *notit = data; |
5cd6d0e5 | 2040 | struct ctf_field_class_int *int_fc = (void *) fc; |
e98a2d6e | 2041 | |
ef267d12 | 2042 | BT_COMP_LOGT("Signed integer function called from BFCR: " |
5cd6d0e5 | 2043 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 PP |
2044 | "fc-type=%d, fc-in-ir=%d, value=%" PRId64, |
2045 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
5cd6d0e5 | 2046 | BT_ASSERT(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE); |
44c440bc | 2047 | |
91d81473 | 2048 | if (G_UNLIKELY(int_fc->storing_index >= 0)) { |
44c440bc | 2049 | g_array_index(notit->stored_values, uint64_t, |
5cd6d0e5 | 2050 | (uint64_t) int_fc->storing_index) = (uint64_t) value; |
44c440bc PP |
2051 | } |
2052 | ||
91d81473 | 2053 | if (G_UNLIKELY(!fc->in_ir)) { |
312c056a | 2054 | goto end; |
e98a2d6e PP |
2055 | } |
2056 | ||
44c440bc PP |
2057 | field = borrow_next_field(notit); |
2058 | BT_ASSERT(field); | |
40f4ba76 PP |
2059 | BT_ASSERT(bt_field_borrow_class_const(field) == fc->ir_fc); |
2060 | BT_ASSERT(bt_field_get_class_type(field) == | |
2061 | BT_FIELD_CLASS_TYPE_SIGNED_INTEGER || | |
2062 | bt_field_get_class_type(field) == | |
2063 | BT_FIELD_CLASS_TYPE_SIGNED_ENUMERATION); | |
9c08c816 | 2064 | bt_field_integer_signed_set_value(field, value); |
e98a2d6e | 2065 | stack_top(notit->stack)->index++; |
fdf0e7a0 | 2066 | |
312c056a | 2067 | end: |
e98a2d6e PP |
2068 | return status; |
2069 | } | |
2070 | ||
2071 | static | |
5cd6d0e5 PP |
2072 | enum bt_bfcr_status bfcr_floating_point_cb(double value, |
2073 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2074 | { |
5cd6d0e5 | 2075 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 2076 | bt_field *field = NULL; |
d6e69534 | 2077 | struct bt_msg_iter *notit = data; |
e98a2d6e | 2078 | |
ef267d12 | 2079 | BT_COMP_LOGT("Floating point number function called from BFCR: " |
5cd6d0e5 | 2080 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 PP |
2081 | "fc-type=%d, fc-in-ir=%d, value=%f", |
2082 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
41693723 | 2083 | |
91d81473 | 2084 | if (G_UNLIKELY(!fc->in_ir)) { |
41693723 PP |
2085 | goto end; |
2086 | } | |
2087 | ||
312c056a | 2088 | field = borrow_next_field(notit); |
44c440bc | 2089 | BT_ASSERT(field); |
40f4ba76 PP |
2090 | BT_ASSERT(bt_field_borrow_class_const(field) == fc->ir_fc); |
2091 | BT_ASSERT(bt_field_get_class_type(field) == | |
2092 | BT_FIELD_CLASS_TYPE_REAL); | |
2093 | bt_field_real_set_value(field, value); | |
e98a2d6e | 2094 | stack_top(notit->stack)->index++; |
41693723 PP |
2095 | |
2096 | end: | |
e98a2d6e PP |
2097 | return status; |
2098 | } | |
2099 | ||
2100 | static | |
5cd6d0e5 PP |
2101 | enum bt_bfcr_status bfcr_string_begin_cb( |
2102 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2103 | { |
b19ff26f | 2104 | bt_field *field = NULL; |
d6e69534 | 2105 | struct bt_msg_iter *notit = data; |
e98a2d6e | 2106 | |
ef267d12 | 2107 | BT_COMP_LOGT("String (beginning) function called from BFCR: " |
5cd6d0e5 | 2108 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 PP |
2109 | "fc-type=%d, fc-in-ir=%d", |
2110 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
e98a2d6e | 2111 | |
91d81473 | 2112 | if (G_UNLIKELY(!fc->in_ir)) { |
41693723 PP |
2113 | goto end; |
2114 | } | |
2115 | ||
44c440bc PP |
2116 | field = borrow_next_field(notit); |
2117 | BT_ASSERT(field); | |
40f4ba76 PP |
2118 | BT_ASSERT(bt_field_borrow_class_const(field) == fc->ir_fc); |
2119 | BT_ASSERT(bt_field_get_class_type(field) == | |
2120 | BT_FIELD_CLASS_TYPE_STRING); | |
d24d5663 | 2121 | bt_field_string_clear(field); |
312c056a | 2122 | |
e98a2d6e | 2123 | /* |
5cd6d0e5 PP |
2124 | * Push on stack. Not a compound class per se, but we know that |
2125 | * only bfcr_string_cb() may be called between this call and a | |
2126 | * subsequent call to bfcr_string_end_cb(). | |
e98a2d6e | 2127 | */ |
44c440bc | 2128 | stack_push(notit->stack, field); |
41693723 PP |
2129 | |
2130 | end: | |
5cd6d0e5 | 2131 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2132 | } |
2133 | ||
2134 | static | |
5cd6d0e5 PP |
2135 | enum bt_bfcr_status bfcr_string_cb(const char *value, |
2136 | size_t len, struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2137 | { |
5cd6d0e5 | 2138 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 2139 | bt_field *field = NULL; |
d6e69534 | 2140 | struct bt_msg_iter *notit = data; |
e98a2d6e PP |
2141 | int ret; |
2142 | ||
ef267d12 | 2143 | BT_COMP_LOGT("String (substring) function called from BFCR: " |
5cd6d0e5 | 2144 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 PP |
2145 | "fc-type=%d, fc-in-ir=%d, string-length=%zu", |
2146 | notit, notit->bfcr, fc, fc->type, fc->in_ir, | |
fdf0e7a0 | 2147 | len); |
41693723 | 2148 | |
91d81473 | 2149 | if (G_UNLIKELY(!fc->in_ir)) { |
41693723 PP |
2150 | goto end; |
2151 | } | |
2152 | ||
e98a2d6e | 2153 | field = stack_top(notit->stack)->base; |
f6ccaed9 | 2154 | BT_ASSERT(field); |
e98a2d6e | 2155 | |
312c056a | 2156 | /* Append current substring */ |
40f4ba76 | 2157 | ret = bt_field_string_append_with_length(field, value, len); |
e98a2d6e | 2158 | if (ret) { |
eb7f6c4f | 2159 | BT_COMP_LOGE("Cannot append substring to string field's value: " |
fdf0e7a0 PP |
2160 | "notit-addr=%p, field-addr=%p, string-length=%zu, " |
2161 | "ret=%d", notit, field, len, ret); | |
5cd6d0e5 | 2162 | status = BT_BFCR_STATUS_ERROR; |
e98a2d6e PP |
2163 | goto end; |
2164 | } | |
2165 | ||
2166 | end: | |
2167 | return status; | |
2168 | } | |
2169 | ||
2170 | static | |
5cd6d0e5 PP |
2171 | enum bt_bfcr_status bfcr_string_end_cb( |
2172 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2173 | { |
d6e69534 | 2174 | struct bt_msg_iter *notit = data; |
e98a2d6e | 2175 | |
ef267d12 | 2176 | BT_COMP_LOGT("String (end) function called from BFCR: " |
5cd6d0e5 | 2177 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 PP |
2178 | "fc-type=%d, fc-in-ir=%d", |
2179 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
41693723 | 2180 | |
91d81473 | 2181 | if (G_UNLIKELY(!fc->in_ir)) { |
41693723 PP |
2182 | goto end; |
2183 | } | |
fdf0e7a0 | 2184 | |
e98a2d6e PP |
2185 | /* Pop string field */ |
2186 | stack_pop(notit->stack); | |
2187 | ||
2188 | /* Go to next field */ | |
2189 | stack_top(notit->stack)->index++; | |
41693723 PP |
2190 | |
2191 | end: | |
5cd6d0e5 | 2192 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2193 | } |
2194 | ||
5cd6d0e5 PP |
2195 | enum bt_bfcr_status bfcr_compound_begin_cb( |
2196 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2197 | { |
d6e69534 | 2198 | struct bt_msg_iter *notit = data; |
b19ff26f | 2199 | bt_field *field; |
e98a2d6e | 2200 | |
ef267d12 | 2201 | BT_COMP_LOGT("Compound (beginning) function called from BFCR: " |
5cd6d0e5 | 2202 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 PP |
2203 | "fc-type=%d, fc-in-ir=%d", |
2204 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
44c440bc | 2205 | |
5cd6d0e5 | 2206 | if (!fc->in_ir) { |
44c440bc PP |
2207 | goto end; |
2208 | } | |
fdf0e7a0 | 2209 | |
312c056a | 2210 | /* Borrow field */ |
e98a2d6e | 2211 | if (stack_empty(notit->stack)) { |
312c056a PP |
2212 | /* Root: already set by read_dscope_begin_state() */ |
2213 | field = notit->cur_dscope_field; | |
e98a2d6e | 2214 | } else { |
312c056a | 2215 | field = borrow_next_field(notit); |
44c440bc | 2216 | BT_ASSERT(field); |
e98a2d6e PP |
2217 | } |
2218 | ||
2219 | /* Push field */ | |
f6ccaed9 | 2220 | BT_ASSERT(field); |
40f4ba76 | 2221 | BT_ASSERT(bt_field_borrow_class_const(field) == fc->ir_fc); |
44c440bc PP |
2222 | stack_push(notit->stack, field); |
2223 | ||
2224 | /* | |
5cd6d0e5 | 2225 | * Change BFCR "unsigned int" callback if it's a text |
44c440bc PP |
2226 | * array/sequence. |
2227 | */ | |
864cad70 PP |
2228 | if (fc->type == CTF_FIELD_CLASS_TYPE_ARRAY || |
2229 | fc->type == CTF_FIELD_CLASS_TYPE_SEQUENCE) { | |
5cd6d0e5 | 2230 | struct ctf_field_class_array_base *array_fc = (void *) fc; |
44c440bc | 2231 | |
5cd6d0e5 | 2232 | if (array_fc->is_text) { |
40f4ba76 PP |
2233 | BT_ASSERT(bt_field_get_class_type(field) == |
2234 | BT_FIELD_CLASS_TYPE_STRING); | |
44c440bc | 2235 | notit->done_filling_string = false; |
d24d5663 | 2236 | bt_field_string_clear(field); |
5cd6d0e5 PP |
2237 | bt_bfcr_set_unsigned_int_cb(notit->bfcr, |
2238 | bfcr_unsigned_int_char_cb); | |
44c440bc | 2239 | } |
e98a2d6e PP |
2240 | } |
2241 | ||
2242 | end: | |
5cd6d0e5 | 2243 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2244 | } |
2245 | ||
5cd6d0e5 PP |
2246 | enum bt_bfcr_status bfcr_compound_end_cb( |
2247 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2248 | { |
d6e69534 | 2249 | struct bt_msg_iter *notit = data; |
e98a2d6e | 2250 | |
ef267d12 | 2251 | BT_COMP_LOGT("Compound (end) function called from BFCR: " |
5cd6d0e5 | 2252 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 PP |
2253 | "fc-type=%d, fc-in-ir=%d", |
2254 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
e98a2d6e | 2255 | |
5cd6d0e5 | 2256 | if (!fc->in_ir) { |
e98a2d6e PP |
2257 | goto end; |
2258 | } | |
2259 | ||
44c440bc | 2260 | BT_ASSERT(!stack_empty(notit->stack)); |
40f4ba76 | 2261 | BT_ASSERT(bt_field_borrow_class_const(stack_top(notit->stack)->base) == |
5cd6d0e5 | 2262 | fc->ir_fc); |
e98a2d6e | 2263 | |
44c440bc | 2264 | /* |
5cd6d0e5 | 2265 | * Reset BFCR "unsigned int" callback if it's a text |
44c440bc PP |
2266 | * array/sequence. |
2267 | */ | |
864cad70 PP |
2268 | if (fc->type == CTF_FIELD_CLASS_TYPE_ARRAY || |
2269 | fc->type == CTF_FIELD_CLASS_TYPE_SEQUENCE) { | |
5cd6d0e5 | 2270 | struct ctf_field_class_array_base *array_fc = (void *) fc; |
44c440bc | 2271 | |
5cd6d0e5 | 2272 | if (array_fc->is_text) { |
864cad70 | 2273 | BT_ASSERT(bt_field_get_class_type( |
40f4ba76 | 2274 | stack_top(notit->stack)->base) == |
e5be10ef | 2275 | BT_FIELD_CLASS_TYPE_STRING); |
5cd6d0e5 PP |
2276 | bt_bfcr_set_unsigned_int_cb(notit->bfcr, |
2277 | bfcr_unsigned_int_cb); | |
e98a2d6e | 2278 | } |
44c440bc | 2279 | } |
e98a2d6e | 2280 | |
44c440bc PP |
2281 | /* Pop stack */ |
2282 | stack_pop(notit->stack); | |
e98a2d6e | 2283 | |
44c440bc PP |
2284 | /* If the stack is not empty, increment the base's index */ |
2285 | if (!stack_empty(notit->stack)) { | |
2286 | stack_top(notit->stack)->index++; | |
e98a2d6e PP |
2287 | } |
2288 | ||
2289 | end: | |
5cd6d0e5 | 2290 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2291 | } |
2292 | ||
2293 | static | |
5cd6d0e5 | 2294 | int64_t bfcr_get_sequence_length_cb(struct ctf_field_class *fc, void *data) |
e98a2d6e | 2295 | { |
b19ff26f | 2296 | bt_field *seq_field; |
d6e69534 | 2297 | struct bt_msg_iter *notit = data; |
5cd6d0e5 | 2298 | struct ctf_field_class_sequence *seq_fc = (void *) fc; |
44c440bc PP |
2299 | int64_t length = -1; |
2300 | int ret; | |
e98a2d6e | 2301 | |
44c440bc | 2302 | length = (uint64_t) g_array_index(notit->stored_values, uint64_t, |
5cd6d0e5 | 2303 | seq_fc->stored_length_index); |
fdf0e7a0 | 2304 | seq_field = stack_top(notit->stack)->base; |
44c440bc | 2305 | BT_ASSERT(seq_field); |
785a6bba PP |
2306 | |
2307 | /* | |
2308 | * bfcr_get_sequence_length_cb() also gets called back for a | |
2309 | * text sequence, but the destination field is a string field. | |
2310 | * Only set the field's sequence length if the destination field | |
2311 | * is a sequence field. | |
2312 | */ | |
2313 | if (!seq_fc->base.is_text) { | |
2314 | BT_ASSERT(bt_field_get_class_type(seq_field) == | |
2315 | BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY); | |
9c08c816 | 2316 | ret = bt_field_array_dynamic_set_length(seq_field, |
785a6bba PP |
2317 | (uint64_t) length); |
2318 | if (ret) { | |
eb7f6c4f | 2319 | BT_COMP_LOGE("Cannot set dynamic array field's length field: " |
785a6bba PP |
2320 | "notit-addr=%p, field-addr=%p, " |
2321 | "length=%" PRIu64, notit, seq_field, length); | |
2322 | } | |
2cf1d51e | 2323 | } |
fdf0e7a0 | 2324 | |
44c440bc | 2325 | return length; |
e98a2d6e PP |
2326 | } |
2327 | ||
2328 | static | |
5cd6d0e5 PP |
2329 | struct ctf_field_class *bfcr_borrow_variant_selected_field_class_cb( |
2330 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2331 | { |
312c056a | 2332 | int ret; |
44c440bc PP |
2333 | uint64_t i; |
2334 | int64_t option_index = -1; | |
d6e69534 | 2335 | struct bt_msg_iter *notit = data; |
5cd6d0e5 PP |
2336 | struct ctf_field_class_variant *var_fc = (void *) fc; |
2337 | struct ctf_named_field_class *selected_option = NULL; | |
2338 | struct ctf_field_class *ret_fc = NULL; | |
44c440bc PP |
2339 | union { |
2340 | uint64_t u; | |
2341 | int64_t i; | |
2342 | } tag; | |
2343 | ||
2344 | /* Get variant's tag */ | |
2345 | tag.u = g_array_index(notit->stored_values, uint64_t, | |
5cd6d0e5 | 2346 | var_fc->stored_tag_index); |
e98a2d6e PP |
2347 | |
2348 | /* | |
44c440bc | 2349 | * Check each range to find the selected option's index. |
e98a2d6e | 2350 | */ |
5cd6d0e5 PP |
2351 | if (var_fc->tag_fc->base.is_signed) { |
2352 | for (i = 0; i < var_fc->ranges->len; i++) { | |
2353 | struct ctf_field_class_variant_range *range = | |
2354 | ctf_field_class_variant_borrow_range_by_index( | |
2355 | var_fc, i); | |
44c440bc PP |
2356 | |
2357 | if (tag.i >= range->range.lower.i && | |
2358 | tag.i <= range->range.upper.i) { | |
2359 | option_index = (int64_t) range->option_index; | |
2360 | break; | |
2361 | } | |
2362 | } | |
312c056a | 2363 | } else { |
5cd6d0e5 PP |
2364 | for (i = 0; i < var_fc->ranges->len; i++) { |
2365 | struct ctf_field_class_variant_range *range = | |
2366 | ctf_field_class_variant_borrow_range_by_index( | |
2367 | var_fc, i); | |
44c440bc PP |
2368 | |
2369 | if (tag.u >= range->range.lower.u && | |
2370 | tag.u <= range->range.upper.u) { | |
2371 | option_index = (int64_t) range->option_index; | |
2372 | break; | |
2373 | } | |
2374 | } | |
312c056a PP |
2375 | } |
2376 | ||
44c440bc | 2377 | if (option_index < 0) { |
eb7f6c4f | 2378 | BT_COMP_LOGW("Cannot find variant field class's option: " |
5cd6d0e5 PP |
2379 | "notit-addr=%p, var-fc-addr=%p, u-tag=%" PRIu64 ", " |
2380 | "i-tag=%" PRId64, notit, var_fc, tag.u, tag.i); | |
e98a2d6e PP |
2381 | goto end; |
2382 | } | |
2383 | ||
5cd6d0e5 PP |
2384 | selected_option = ctf_field_class_variant_borrow_option_by_index( |
2385 | var_fc, (uint64_t) option_index); | |
e98a2d6e | 2386 | |
5cd6d0e5 | 2387 | if (selected_option->fc->in_ir) { |
b19ff26f | 2388 | bt_field *var_field = stack_top(notit->stack)->base; |
1556a1af | 2389 | |
45c51519 | 2390 | ret = bt_field_variant_select_option_field_by_index( |
e5be10ef | 2391 | var_field, option_index); |
e22b45d0 | 2392 | if (ret) { |
eb7f6c4f | 2393 | BT_COMP_LOGW("Cannot select variant field's option field: " |
44c440bc PP |
2394 | "notit-addr=%p, var-field-addr=%p, " |
2395 | "opt-index=%" PRId64, notit, var_field, | |
2396 | option_index); | |
1556a1af JG |
2397 | goto end; |
2398 | } | |
af87daef PP |
2399 | } |
2400 | ||
5cd6d0e5 | 2401 | ret_fc = selected_option->fc; |
e22b45d0 | 2402 | |
af87daef | 2403 | end: |
5cd6d0e5 | 2404 | return ret_fc; |
44c440bc PP |
2405 | } |
2406 | ||
f42867e2 | 2407 | static |
fc917f65 | 2408 | void create_msg_stream_beginning(struct bt_msg_iter *notit, |
d6e69534 | 2409 | bt_message **message) |
f42867e2 | 2410 | { |
d6e69534 | 2411 | bt_message *ret = NULL; |
f42867e2 | 2412 | |
f42867e2 | 2413 | BT_ASSERT(notit->stream); |
d6e69534 PP |
2414 | BT_ASSERT(notit->msg_iter); |
2415 | ret = bt_message_stream_beginning_create(notit->msg_iter, | |
f0010051 | 2416 | notit->stream); |
f42867e2 | 2417 | if (!ret) { |
eb7f6c4f | 2418 | BT_COMP_LOGE("Cannot create stream beginning message: " |
f42867e2 PP |
2419 | "notit-addr=%p, stream-addr=%p", |
2420 | notit, notit->stream); | |
2421 | return; | |
2422 | } | |
2423 | ||
d6e69534 | 2424 | *message = ret; |
f42867e2 PP |
2425 | } |
2426 | ||
fc917f65 PP |
2427 | static |
2428 | void create_msg_stream_end(struct bt_msg_iter *notit, bt_message **message) | |
f42867e2 | 2429 | { |
d6e69534 | 2430 | bt_message *ret; |
f42867e2 PP |
2431 | |
2432 | if (!notit->stream) { | |
eb7f6c4f | 2433 | BT_COMP_LOGE("Cannot create stream for stream message: " |
f42867e2 PP |
2434 | "notit-addr=%p", notit); |
2435 | return; | |
2436 | } | |
2437 | ||
d6e69534 PP |
2438 | BT_ASSERT(notit->msg_iter); |
2439 | ret = bt_message_stream_end_create(notit->msg_iter, | |
f0010051 | 2440 | notit->stream); |
f42867e2 | 2441 | if (!ret) { |
eb7f6c4f | 2442 | BT_COMP_LOGE("Cannot create stream end message: " |
f42867e2 PP |
2443 | "notit-addr=%p, stream-addr=%p", |
2444 | notit, notit->stream); | |
2445 | return; | |
2446 | } | |
fc917f65 | 2447 | |
d6e69534 | 2448 | *message = ret; |
f42867e2 PP |
2449 | } |
2450 | ||
78586d8a | 2451 | static |
fc917f65 | 2452 | void create_msg_packet_beginning(struct bt_msg_iter *notit, |
d6e69534 | 2453 | bt_message **message) |
e98a2d6e | 2454 | { |
312c056a | 2455 | int ret; |
d6e69534 PP |
2456 | enum bt_msg_iter_status status; |
2457 | bt_message *msg = NULL; | |
b19ff26f | 2458 | const bt_stream_class *sc; |
e98a2d6e | 2459 | |
312c056a | 2460 | status = set_current_packet(notit); |
d6e69534 | 2461 | if (status != BT_MSG_ITER_STATUS_OK) { |
312c056a | 2462 | goto end; |
e98a2d6e PP |
2463 | } |
2464 | ||
312c056a | 2465 | BT_ASSERT(notit->packet); |
40f4ba76 | 2466 | sc = notit->meta.sc->ir_sc; |
44c440bc PP |
2467 | BT_ASSERT(sc); |
2468 | ||
312c056a | 2469 | if (notit->packet_context_field) { |
40f4ba76 | 2470 | ret = bt_packet_move_context_field( |
e5be10ef | 2471 | notit->packet, notit->packet_context_field); |
312c056a PP |
2472 | if (ret) { |
2473 | goto end; | |
2474 | } | |
2475 | ||
2476 | notit->packet_context_field = NULL; | |
2477 | ||
2478 | /* | |
83ebb7f1 PP |
2479 | * At this point notit->dscopes.stream_packet_context |
2480 | * has the same value as the packet context field within | |
312c056a PP |
2481 | * notit->packet. |
2482 | */ | |
40f4ba76 | 2483 | BT_ASSERT(bt_packet_borrow_context_field( |
e5be10ef | 2484 | notit->packet) == |
312c056a PP |
2485 | notit->dscopes.stream_packet_context); |
2486 | } | |
2487 | ||
d6e69534 | 2488 | BT_ASSERT(notit->msg_iter); |
a6d85d2f | 2489 | |
afd45274 PP |
2490 | if (notit->meta.sc->packets_have_ts_begin) { |
2491 | BT_ASSERT(notit->snapshots.beginning_clock != UINT64_C(-1)); | |
a33f7c34 | 2492 | msg = bt_message_packet_beginning_create_with_default_clock_snapshot( |
afd45274 PP |
2493 | notit->msg_iter, notit->packet, |
2494 | notit->snapshots.beginning_clock); | |
a33f7c34 | 2495 | } else { |
a6d85d2f PP |
2496 | msg = bt_message_packet_beginning_create(notit->msg_iter, |
2497 | notit->packet); | |
a6d85d2f PP |
2498 | } |
2499 | ||
d6e69534 | 2500 | if (!msg) { |
eb7f6c4f | 2501 | BT_COMP_LOGE("Cannot create packet beginning message: " |
fdf0e7a0 PP |
2502 | "notit-addr=%p, packet-addr=%p", |
2503 | notit, notit->packet); | |
e22b45d0 | 2504 | goto end; |
78586d8a | 2505 | } |
312c056a | 2506 | |
d6e69534 | 2507 | *message = msg; |
e22b45d0 PP |
2508 | |
2509 | end: | |
2510 | return; | |
e98a2d6e PP |
2511 | } |
2512 | ||
78586d8a | 2513 | static |
fc917f65 | 2514 | void create_msg_packet_end(struct bt_msg_iter *notit, bt_message **message) |
e98a2d6e | 2515 | { |
d6e69534 | 2516 | bt_message *msg; |
e98a2d6e | 2517 | |
e98a2d6e | 2518 | if (!notit->packet) { |
78586d8a | 2519 | return; |
e98a2d6e PP |
2520 | } |
2521 | ||
44c440bc PP |
2522 | /* Update default clock from packet's end time */ |
2523 | if (notit->snapshots.end_clock != UINT64_C(-1)) { | |
605e1019 | 2524 | notit->default_clock_snapshot = notit->snapshots.end_clock; |
44c440bc PP |
2525 | } |
2526 | ||
d6e69534 | 2527 | BT_ASSERT(notit->msg_iter); |
a6d85d2f | 2528 | |
afd45274 | 2529 | if (notit->meta.sc->packets_have_ts_end) { |
a33f7c34 | 2530 | BT_ASSERT(notit->snapshots.end_clock != UINT64_C(-1)); |
a6d85d2f PP |
2531 | msg = bt_message_packet_end_create_with_default_clock_snapshot( |
2532 | notit->msg_iter, notit->packet, | |
2533 | notit->snapshots.end_clock); | |
a33f7c34 PP |
2534 | } else { |
2535 | msg = bt_message_packet_end_create(notit->msg_iter, | |
2536 | notit->packet); | |
a6d85d2f PP |
2537 | } |
2538 | ||
d6e69534 | 2539 | if (!msg) { |
eb7f6c4f | 2540 | BT_COMP_LOGE("Cannot create packet end message: " |
fdf0e7a0 PP |
2541 | "notit-addr=%p, packet-addr=%p", |
2542 | notit, notit->packet); | |
78586d8a | 2543 | return; |
ccf82993 | 2544 | |
78586d8a | 2545 | } |
e98a2d6e | 2546 | |
c5b9b441 | 2547 | BT_PACKET_PUT_REF_AND_RESET(notit->packet); |
d6e69534 | 2548 | *message = msg; |
e98a2d6e PP |
2549 | } |
2550 | ||
495490c5 PP |
2551 | static |
2552 | void create_msg_discarded_events(struct bt_msg_iter *notit, | |
2553 | bt_message **message) | |
2554 | { | |
2555 | bt_message *msg; | |
2556 | uint64_t beginning_raw_value = UINT64_C(-1); | |
2557 | uint64_t end_raw_value = UINT64_C(-1); | |
495490c5 PP |
2558 | |
2559 | BT_ASSERT(notit->msg_iter); | |
2560 | BT_ASSERT(notit->stream); | |
afd45274 | 2561 | BT_ASSERT(notit->meta.sc->has_discarded_events); |
495490c5 | 2562 | |
afd45274 PP |
2563 | if (notit->meta.sc->discarded_events_have_default_cs) { |
2564 | if (notit->prev_packet_snapshots.discarded_events == UINT64_C(-1)) { | |
2565 | /* | |
2566 | * We discarded events, but before (and possibly | |
2567 | * including) the current packet: use this packet's time | |
2568 | * range, and do not have a specific count. | |
2569 | */ | |
2570 | beginning_raw_value = notit->snapshots.beginning_clock; | |
2571 | end_raw_value = notit->snapshots.end_clock; | |
2572 | } else { | |
2573 | beginning_raw_value = notit->prev_packet_snapshots.end_clock; | |
2574 | end_raw_value = notit->snapshots.end_clock; | |
2575 | } | |
495490c5 | 2576 | |
afd45274 PP |
2577 | BT_ASSERT(beginning_raw_value != UINT64_C(-1)); |
2578 | BT_ASSERT(end_raw_value != UINT64_C(-1)); | |
495490c5 PP |
2579 | msg = bt_message_discarded_events_create_with_default_clock_snapshots( |
2580 | notit->msg_iter, notit->stream, beginning_raw_value, | |
2581 | end_raw_value); | |
2582 | } else { | |
2583 | msg = bt_message_discarded_events_create(notit->msg_iter, | |
2584 | notit->stream); | |
2585 | } | |
2586 | ||
2587 | if (!msg) { | |
eb7f6c4f | 2588 | BT_COMP_LOGE("Cannot create discarded events message: " |
495490c5 PP |
2589 | "notit-addr=%p, stream-addr=%p", |
2590 | notit, notit->stream); | |
2591 | return; | |
2592 | } | |
2593 | ||
afd45274 PP |
2594 | if (notit->prev_packet_snapshots.discarded_events != UINT64_C(-1)) { |
2595 | bt_message_discarded_events_set_count(msg, | |
2596 | notit->snapshots.discarded_events - | |
2597 | notit->prev_packet_snapshots.discarded_events); | |
495490c5 PP |
2598 | } |
2599 | ||
2600 | *message = msg; | |
2601 | } | |
2602 | ||
2603 | static | |
2604 | void create_msg_discarded_packets(struct bt_msg_iter *notit, | |
2605 | bt_message **message) | |
2606 | { | |
2607 | bt_message *msg; | |
2608 | ||
2609 | BT_ASSERT(notit->msg_iter); | |
2610 | BT_ASSERT(notit->stream); | |
afd45274 | 2611 | BT_ASSERT(notit->meta.sc->has_discarded_packets); |
495490c5 PP |
2612 | BT_ASSERT(notit->prev_packet_snapshots.packets != |
2613 | UINT64_C(-1)); | |
2614 | ||
afd45274 PP |
2615 | if (notit->meta.sc->discarded_packets_have_default_cs) { |
2616 | BT_ASSERT(notit->prev_packet_snapshots.end_clock != UINT64_C(-1)); | |
2617 | BT_ASSERT(notit->snapshots.beginning_clock != UINT64_C(-1)); | |
495490c5 PP |
2618 | msg = bt_message_discarded_packets_create_with_default_clock_snapshots( |
2619 | notit->msg_iter, notit->stream, | |
2620 | notit->prev_packet_snapshots.end_clock, | |
2621 | notit->snapshots.beginning_clock); | |
2622 | } else { | |
2623 | msg = bt_message_discarded_packets_create(notit->msg_iter, | |
2624 | notit->stream); | |
2625 | } | |
2626 | ||
2627 | if (!msg) { | |
eb7f6c4f | 2628 | BT_COMP_LOGE("Cannot create discarded packets message: " |
495490c5 PP |
2629 | "notit-addr=%p, stream-addr=%p", |
2630 | notit, notit->stream); | |
2631 | return; | |
2632 | } | |
2633 | ||
2634 | bt_message_discarded_packets_set_count(msg, | |
2635 | notit->snapshots.packets - | |
2636 | notit->prev_packet_snapshots.packets - 1); | |
2637 | *message = msg; | |
2638 | } | |
2639 | ||
c44c3e70 | 2640 | BT_HIDDEN |
d6e69534 | 2641 | struct bt_msg_iter *bt_msg_iter_create(struct ctf_trace_class *tc, |
e98a2d6e | 2642 | size_t max_request_sz, |
ea14c7dd | 2643 | struct bt_msg_iter_medium_ops medops, void *data, |
eb7f6c4f | 2644 | bt_logging_level log_level, bt_self_component *self_comp) |
e98a2d6e | 2645 | { |
d6e69534 | 2646 | struct bt_msg_iter *notit = NULL; |
5cd6d0e5 PP |
2647 | struct bt_bfcr_cbs cbs = { |
2648 | .classes = { | |
2649 | .signed_int = bfcr_signed_int_cb, | |
2650 | .unsigned_int = bfcr_unsigned_int_cb, | |
2651 | .floating_point = bfcr_floating_point_cb, | |
2652 | .string_begin = bfcr_string_begin_cb, | |
2653 | .string = bfcr_string_cb, | |
2654 | .string_end = bfcr_string_end_cb, | |
2655 | .compound_begin = bfcr_compound_begin_cb, | |
2656 | .compound_end = bfcr_compound_end_cb, | |
e98a2d6e PP |
2657 | }, |
2658 | .query = { | |
5cd6d0e5 PP |
2659 | .get_sequence_length = bfcr_get_sequence_length_cb, |
2660 | .borrow_variant_selected_field_class = bfcr_borrow_variant_selected_field_class_cb, | |
e98a2d6e PP |
2661 | }, |
2662 | }; | |
2663 | ||
44c440bc | 2664 | BT_ASSERT(tc); |
f6ccaed9 | 2665 | BT_ASSERT(medops.request_bytes); |
312c056a | 2666 | BT_ASSERT(medops.borrow_stream); |
eb7f6c4f | 2667 | BT_COMP_LOG_CUR_LVL(BT_LOG_DEBUG, log_level, self_comp, |
ea14c7dd | 2668 | "Creating CTF plugin message iterator: " |
862ca4ed | 2669 | "trace-addr=%p, max-request-size=%zu, " |
ea14c7dd PP |
2670 | "data=%p, log-level=%s", tc, max_request_sz, data, |
2671 | bt_common_logging_level_string(log_level)); | |
d6e69534 | 2672 | notit = g_new0(struct bt_msg_iter, 1); |
e98a2d6e | 2673 | if (!notit) { |
eb7f6c4f | 2674 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_comp, |
ea14c7dd | 2675 | "Failed to allocate one CTF plugin message iterator."); |
e98a2d6e PP |
2676 | goto end; |
2677 | } | |
eb7f6c4f | 2678 | notit->self_comp = self_comp; |
ea14c7dd | 2679 | notit->log_level = log_level; |
44c440bc | 2680 | notit->meta.tc = tc; |
e98a2d6e PP |
2681 | notit->medium.medops = medops; |
2682 | notit->medium.max_request_sz = max_request_sz; | |
2683 | notit->medium.data = data; | |
e98a2d6e | 2684 | notit->stack = stack_new(notit); |
44c440bc PP |
2685 | notit->stored_values = g_array_new(FALSE, TRUE, sizeof(uint64_t)); |
2686 | g_array_set_size(notit->stored_values, tc->stored_value_count); | |
2687 | ||
e98a2d6e | 2688 | if (!notit->stack) { |
eb7f6c4f | 2689 | BT_COMP_LOGE_STR("Failed to create field stack."); |
c44c3e70 | 2690 | goto error; |
e98a2d6e PP |
2691 | } |
2692 | ||
c4a714d2 | 2693 | notit->bfcr = bt_bfcr_create(cbs, notit, log_level, NULL); |
5cd6d0e5 | 2694 | if (!notit->bfcr) { |
eb7f6c4f | 2695 | BT_COMP_LOGE_STR("Failed to create binary class reader (BFCR)."); |
c44c3e70 | 2696 | goto error; |
e98a2d6e PP |
2697 | } |
2698 | ||
d6e69534 | 2699 | bt_msg_iter_reset(notit); |
eb7f6c4f | 2700 | BT_COMP_LOGD("Created CTF plugin message iterator: " |
862ca4ed | 2701 | "trace-addr=%p, max-request-size=%zu, " |
ea14c7dd PP |
2702 | "data=%p, notit-addr=%p, log-level=%s", |
2703 | tc, max_request_sz, data, notit, | |
2704 | bt_common_logging_level_string(log_level)); | |
9e0c8dbb | 2705 | notit->cur_packet_offset = 0; |
fdf0e7a0 | 2706 | |
e98a2d6e PP |
2707 | end: |
2708 | return notit; | |
fdf0e7a0 | 2709 | |
c44c3e70 | 2710 | error: |
d6e69534 | 2711 | bt_msg_iter_destroy(notit); |
c44c3e70 JG |
2712 | notit = NULL; |
2713 | goto end; | |
e98a2d6e PP |
2714 | } |
2715 | ||
d6e69534 | 2716 | void bt_msg_iter_destroy(struct bt_msg_iter *notit) |
e98a2d6e | 2717 | { |
c5b9b441 PP |
2718 | BT_PACKET_PUT_REF_AND_RESET(notit->packet); |
2719 | BT_STREAM_PUT_REF_AND_RESET(notit->stream); | |
312c056a | 2720 | release_all_dscopes(notit); |
e98a2d6e | 2721 | |
eb7f6c4f | 2722 | BT_COMP_LOGD("Destroying CTF plugin message iterator: addr=%p", notit); |
fdf0e7a0 | 2723 | |
e98a2d6e | 2724 | if (notit->stack) { |
eb7f6c4f | 2725 | BT_COMP_LOGD_STR("Destroying field stack."); |
e98a2d6e PP |
2726 | stack_destroy(notit->stack); |
2727 | } | |
2728 | ||
5cd6d0e5 | 2729 | if (notit->bfcr) { |
eb7f6c4f | 2730 | BT_COMP_LOGD("Destroying BFCR: bfcr-addr=%p", notit->bfcr); |
5cd6d0e5 | 2731 | bt_bfcr_destroy(notit->bfcr); |
e98a2d6e PP |
2732 | } |
2733 | ||
44c440bc PP |
2734 | if (notit->stored_values) { |
2735 | g_array_free(notit->stored_values, TRUE); | |
5f870343 | 2736 | } |
fdf0e7a0 | 2737 | |
e98a2d6e PP |
2738 | g_free(notit); |
2739 | } | |
2740 | ||
d6e69534 PP |
2741 | enum bt_msg_iter_status bt_msg_iter_get_next_message( |
2742 | struct bt_msg_iter *notit, | |
fc917f65 | 2743 | bt_self_message_iterator *msg_iter, bt_message **message) |
e98a2d6e | 2744 | { |
d6e69534 | 2745 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
e98a2d6e | 2746 | |
f6ccaed9 | 2747 | BT_ASSERT(notit); |
d6e69534 | 2748 | BT_ASSERT(message); |
d6e69534 | 2749 | notit->msg_iter = msg_iter; |
495490c5 | 2750 | notit->set_stream = true; |
eb7f6c4f | 2751 | BT_COMP_LOGD("Getting next message: notit-addr=%p", notit); |
fdf0e7a0 | 2752 | |
e98a2d6e PP |
2753 | while (true) { |
2754 | status = handle_state(notit); | |
91d81473 | 2755 | if (G_UNLIKELY(status == BT_MSG_ITER_STATUS_AGAIN)) { |
eb7f6c4f | 2756 | BT_COMP_LOGD_STR("Medium returned BT_MSG_ITER_STATUS_AGAIN."); |
7cdc2bab | 2757 | goto end; |
91d81473 | 2758 | } else if (G_UNLIKELY(status != BT_MSG_ITER_STATUS_OK)) { |
eb7f6c4f | 2759 | BT_COMP_LOGW("Cannot handle state: notit-addr=%p, state=%s", |
fc917f65 | 2760 | notit, state_string(notit->state)); |
e98a2d6e PP |
2761 | goto end; |
2762 | } | |
2763 | ||
2764 | switch (notit->state) { | |
fc917f65 PP |
2765 | case STATE_EMIT_MSG_EVENT: |
2766 | BT_ASSERT(notit->event_msg); | |
fc917f65 PP |
2767 | *message = notit->event_msg; |
2768 | notit->event_msg = NULL; | |
495490c5 PP |
2769 | goto end; |
2770 | case STATE_EMIT_MSG_DISCARDED_EVENTS: | |
2771 | /* create_msg_discared_events() logs errors */ | |
2772 | create_msg_discarded_events(notit, message); | |
2773 | ||
2774 | if (!*message) { | |
2775 | status = BT_MSG_ITER_STATUS_ERROR; | |
2776 | } | |
2777 | ||
2778 | goto end; | |
2779 | case STATE_EMIT_MSG_DISCARDED_PACKETS: | |
2780 | /* create_msg_discared_packets() logs errors */ | |
2781 | create_msg_discarded_packets(notit, message); | |
2782 | ||
2783 | if (!*message) { | |
2784 | status = BT_MSG_ITER_STATUS_ERROR; | |
2785 | } | |
2786 | ||
fc917f65 PP |
2787 | goto end; |
2788 | case STATE_EMIT_MSG_PACKET_BEGINNING: | |
2789 | /* create_msg_packet_beginning() logs errors */ | |
2790 | create_msg_packet_beginning(notit, message); | |
44c440bc | 2791 | |
d6e69534 PP |
2792 | if (!*message) { |
2793 | status = BT_MSG_ITER_STATUS_ERROR; | |
f42867e2 | 2794 | } |
44c440bc | 2795 | |
f42867e2 | 2796 | goto end; |
fc917f65 PP |
2797 | case STATE_EMIT_MSG_PACKET_END_SINGLE: |
2798 | case STATE_EMIT_MSG_PACKET_END_MULTI: | |
2799 | /* create_msg_packet_end() logs errors */ | |
2800 | create_msg_packet_end(notit, message); | |
44c440bc | 2801 | |
d6e69534 PP |
2802 | if (!*message) { |
2803 | status = BT_MSG_ITER_STATUS_ERROR; | |
e98a2d6e | 2804 | } |
312c056a | 2805 | |
495490c5 | 2806 | goto end; |
fc917f65 | 2807 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
495490c5 PP |
2808 | /* create_msg_stream_beginning() logs errors */ |
2809 | create_msg_stream_beginning(notit, message); | |
fc917f65 | 2810 | |
495490c5 PP |
2811 | if (!*message) { |
2812 | status = BT_MSG_ITER_STATUS_ERROR; | |
fc917f65 PP |
2813 | } |
2814 | ||
495490c5 | 2815 | goto end; |
fc917f65 | 2816 | case STATE_EMIT_MSG_STREAM_END: |
495490c5 PP |
2817 | /* create_msg_stream_end() logs errors */ |
2818 | create_msg_stream_end(notit, message); | |
fc917f65 | 2819 | |
495490c5 PP |
2820 | if (!*message) { |
2821 | status = BT_MSG_ITER_STATUS_ERROR; | |
fc917f65 PP |
2822 | } |
2823 | ||
495490c5 | 2824 | goto end; |
fc917f65 PP |
2825 | case STATE_DONE: |
2826 | status = BT_MSG_ITER_STATUS_EOF; | |
e98a2d6e PP |
2827 | goto end; |
2828 | default: | |
2829 | /* Non-emitting state: continue */ | |
2830 | break; | |
2831 | } | |
2832 | } | |
2833 | ||
2834 | end: | |
2835 | return status; | |
2836 | } | |
87187cbf | 2837 | |
41693723 PP |
2838 | static |
2839 | enum bt_msg_iter_status read_packet_header_context_fields( | |
2840 | struct bt_msg_iter *notit) | |
87187cbf | 2841 | { |
9e0c8dbb | 2842 | int ret; |
d6e69534 | 2843 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
87187cbf | 2844 | |
f6ccaed9 | 2845 | BT_ASSERT(notit); |
495490c5 | 2846 | notit->set_stream = false; |
87187cbf | 2847 | |
fc917f65 | 2848 | if (notit->state == STATE_EMIT_MSG_PACKET_BEGINNING) { |
87187cbf | 2849 | /* We're already there */ |
41693723 | 2850 | goto end; |
87187cbf PP |
2851 | } |
2852 | ||
2853 | while (true) { | |
2854 | status = handle_state(notit); | |
91d81473 | 2855 | if (G_UNLIKELY(status == BT_MSG_ITER_STATUS_AGAIN)) { |
eb7f6c4f | 2856 | BT_COMP_LOGD_STR("Medium returned BT_MSG_ITER_STATUS_AGAIN."); |
87187cbf | 2857 | goto end; |
91d81473 | 2858 | } else if (G_UNLIKELY(status != BT_MSG_ITER_STATUS_OK)) { |
eb7f6c4f | 2859 | BT_COMP_LOGW("Cannot handle state: notit-addr=%p, state=%s", |
fc917f65 | 2860 | notit, state_string(notit->state)); |
87187cbf PP |
2861 | goto end; |
2862 | } | |
2863 | ||
2864 | switch (notit->state) { | |
fc917f65 | 2865 | case STATE_EMIT_MSG_PACKET_BEGINNING: |
87187cbf PP |
2866 | /* |
2867 | * Packet header and context fields are | |
2868 | * potentially decoded (or they don't exist). | |
2869 | */ | |
41693723 | 2870 | goto end; |
87187cbf PP |
2871 | case STATE_INIT: |
2872 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
2873 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
2874 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
2875 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
2876 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
2877 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
495490c5 | 2878 | case STATE_CHECK_EMIT_MSG_STREAM_BEGINNING: |
fc917f65 | 2879 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
495490c5 PP |
2880 | case STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS: |
2881 | case STATE_EMIT_MSG_DISCARDED_EVENTS: | |
2882 | case STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS: | |
2883 | case STATE_EMIT_MSG_DISCARDED_PACKETS: | |
87187cbf PP |
2884 | /* Non-emitting state: continue */ |
2885 | break; | |
2886 | default: | |
2887 | /* | |
2888 | * We should never get past the | |
fc917f65 | 2889 | * STATE_EMIT_MSG_PACKET_BEGINNING state. |
87187cbf | 2890 | */ |
eb7f6c4f | 2891 | BT_COMP_LOGF("Unexpected state: notit-addr=%p, state=%s", |
fdf0e7a0 | 2892 | notit, state_string(notit->state)); |
0fbb9a9f | 2893 | abort(); |
87187cbf PP |
2894 | } |
2895 | } | |
2896 | ||
41693723 | 2897 | end: |
312c056a PP |
2898 | ret = set_current_packet_content_sizes(notit); |
2899 | if (ret) { | |
d6e69534 | 2900 | status = BT_MSG_ITER_STATUS_ERROR; |
312c056a PP |
2901 | } |
2902 | ||
87187cbf PP |
2903 | return status; |
2904 | } | |
6de92955 PP |
2905 | |
2906 | BT_HIDDEN | |
d6e69534 | 2907 | void bt_msg_iter_set_medops_data(struct bt_msg_iter *notit, |
6de92955 PP |
2908 | void *medops_data) |
2909 | { | |
f6ccaed9 | 2910 | BT_ASSERT(notit); |
6de92955 PP |
2911 | notit->medium.data = medops_data; |
2912 | } | |
9e0c8dbb JG |
2913 | |
2914 | BT_HIDDEN | |
fc917f65 PP |
2915 | enum bt_msg_iter_status bt_msg_iter_seek(struct bt_msg_iter *notit, |
2916 | off_t offset) | |
9e0c8dbb | 2917 | { |
d6e69534 PP |
2918 | enum bt_msg_iter_status ret = BT_MSG_ITER_STATUS_OK; |
2919 | enum bt_msg_iter_medium_status medium_status; | |
9e0c8dbb | 2920 | |
f6ccaed9 | 2921 | BT_ASSERT(notit); |
9e0c8dbb | 2922 | if (offset < 0) { |
eb7f6c4f | 2923 | BT_COMP_LOGE("Cannot seek to negative offset: offset=%jd", offset); |
d6e69534 | 2924 | ret = BT_MSG_ITER_STATUS_INVAL; |
9e0c8dbb JG |
2925 | goto end; |
2926 | } | |
2927 | ||
2928 | if (!notit->medium.medops.seek) { | |
d6e69534 | 2929 | ret = BT_MSG_ITER_STATUS_UNSUPPORTED; |
eb7f6c4f | 2930 | BT_COMP_LOGD("Aborting seek as the iterator's underlying media does not implement seek support."); |
9e0c8dbb JG |
2931 | goto end; |
2932 | } | |
2933 | ||
2934 | medium_status = notit->medium.medops.seek( | |
d6e69534 PP |
2935 | BT_MSG_ITER_SEEK_WHENCE_SET, offset, notit->medium.data); |
2936 | if (medium_status != BT_MSG_ITER_MEDIUM_STATUS_OK) { | |
2937 | if (medium_status == BT_MSG_ITER_MEDIUM_STATUS_EOF) { | |
2938 | ret = BT_MSG_ITER_STATUS_EOF; | |
9e0c8dbb | 2939 | } else { |
d6e69534 | 2940 | ret = BT_MSG_ITER_STATUS_ERROR; |
9e0c8dbb JG |
2941 | goto end; |
2942 | } | |
2943 | } | |
2944 | ||
d6e69534 | 2945 | bt_msg_iter_reset(notit); |
9e0c8dbb | 2946 | notit->cur_packet_offset = offset; |
44c440bc | 2947 | |
9e0c8dbb JG |
2948 | end: |
2949 | return ret; | |
2950 | } | |
2951 | ||
44c440bc | 2952 | BT_HIDDEN |
d6e69534 PP |
2953 | enum bt_msg_iter_status bt_msg_iter_get_packet_properties( |
2954 | struct bt_msg_iter *notit, | |
2955 | struct bt_msg_iter_packet_properties *props) | |
44c440bc | 2956 | { |
41693723 PP |
2957 | enum bt_msg_iter_status status; |
2958 | ||
44c440bc PP |
2959 | BT_ASSERT(notit); |
2960 | BT_ASSERT(props); | |
41693723 PP |
2961 | status = read_packet_header_context_fields(notit); |
2962 | if (status != BT_MSG_ITER_STATUS_OK) { | |
2963 | goto end; | |
2964 | } | |
44c440bc | 2965 | |
fc917f65 PP |
2966 | props->exp_packet_total_size = notit->cur_exp_packet_total_size; |
2967 | props->exp_packet_content_size = notit->cur_exp_packet_content_size; | |
44c440bc PP |
2968 | props->stream_class_id = (uint64_t) notit->cur_stream_class_id; |
2969 | props->data_stream_id = notit->cur_data_stream_id; | |
2970 | props->snapshots.discarded_events = notit->snapshots.discarded_events; | |
2971 | props->snapshots.packets = notit->snapshots.packets; | |
2972 | props->snapshots.beginning_clock = notit->snapshots.beginning_clock; | |
2973 | props->snapshots.end_clock = notit->snapshots.end_clock; | |
41693723 PP |
2974 | |
2975 | end: | |
2976 | return status; | |
9e0c8dbb | 2977 | } |
fc917f65 PP |
2978 | |
2979 | BT_HIDDEN | |
2980 | void bt_msg_iter_set_emit_stream_beginning_message(struct bt_msg_iter *notit, | |
2981 | bool val) | |
2982 | { | |
2983 | notit->emit_stream_begin_msg = val; | |
2984 | } | |
2985 | ||
2986 | BT_HIDDEN | |
2987 | void bt_msg_iter_set_emit_stream_end_message(struct bt_msg_iter *notit, | |
2988 | bool val) | |
2989 | { | |
2990 | notit->emit_stream_end_msg = val; | |
2991 | } |